NOVELTY - Complex microbial water purifying agent comprises 18-20 pts. wt. Bacillus amyloliquefaciens, 15-18 pts. wt. Rhodopseudomonas palustris, 10-15 pts. wt. Nitobacter, 10-15pts. wt. denitrifying bacteria, 25-30pts. wt. Bacillus subtilis, and 28-35 pts. wt. Bacillus licheniformis.    USE - Used as complex microbial water purifying agent (claimed).    ADVANTAGE - The purifying agent purifies organic pollutants in the water body.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the method of preparing complex microbial water purifying agent comprising (i) separately taking concentration for bacterial liquid 50 x 108 cfu/ml Bacillus amyloliquefaciens, Nitrobacter strain, and Rhodopseudomonas palustris strain, inoculating in culture medium I of 1.9-2.1 l at 23-25 degrees C. culturing for 14-16 hours, obtaining 15-20 l culture medium II, culturing at 25-28 degrees C for 20-25 hours at the heating rate of 3 degrees C/hour, stirring, and culturing for 20-22 hours, separately taking concentration denitrifying bacteria strain of 50x 108 cfu/ml bacillus subtilis strain of fungus liquid Bacillus subtilisand Bacillus licheniformis, inoculating in culture medium I of 1.9-2.1 l at 33-35 degrees C, culturing for 14-16 hours, obtaining 15-20 l of culture medium II at 36-38 degrees C for 12-15hrs at the rate of 3 degrees C/hour, stirring culturing 20-22 hours, the culture medium I includes beef paste peptone, shaking bottle culture medium, the culture medium II is reinforced clostridial medium, (ii) providing one fermentation tank, comprising a tank body, where the tank body is hollow and cylindrical lower part is closed, the bottom of the jar body is set with the first magnetic stirrer, the upper middle part of the tank body to from the following is set with vertical separator and screen, the tank body for dividing into upper space and lower space, the upper part space is provided with the tank body and the coaxial air chamber, the air chamber in the upper wall along axial direction is set with atleast one ventilation pipe, the tank body and the air chamber forms one annular space provided with multiple vertical clapboard and in one annular space, the annular space is divided to make the whole multi- not connected and fan shaped cylindrical fermentation room, the air pipe end passes through the air chamber extending to one of the fermentation chamber of the air inlet end and outside air blower are connected to any one fermentation chamber upper part provided with the opening and closing of the cover body, the lower surface of the cover body is equipped with modulator tube, the vertical clapboard and two upper surface are equipped with the first electric heating tube, the lower part space of tank body outside of wall is provided with the second electric heating pipe, the tank body of inner wall coating with medicine layer and the medicine layer comprises 30-40 pts. wt. peony velamen extraction liquid, 20-30 pts. wt. rose flower extracting liquid, 25-28 pts. wt. Asparagus powder, and 15-25 pts. wt. Chinese yam powder, the screen and the vertical clapboard and the tank body are set parallel, and are of same size, The vertical clapboard of the multi-size same fan-shaped plate body, the whole multi-connecting plate and round plate body splicing are connected, the screen form the concentric round plate-shaped structure, surface of bottom is sealed and the round plate body of the ventilating chamber is connected, the connecting plate at one end is fixedly connected on round plate body, the other end is fixedly connected on the tank body inner wall, adjacent to the two of the fan-shaped plate body is connected to the one of the horizontal connecting plate, the connecting plate is in contact with the fan-shaped plate body and two side face provided with a buckle on the fan shaped plate body, the two straight edges of the first groove, the surface of the connecting plate is equipped with the vertical clapboard and lower buckle edge bottom of the second groove, the circle of the tank body of the fan-shaped plate body and is provided with two arc-shaped multi way hole, the fan-shaped plate shape extending part is bent arc-shaped way hole and forming the baffle plate, the fan-shaped plate body upper surface is provided with the second magnetic stirrer, (iii) from 1-6 fermentation room, the fermentation liquid is added with 50-60 pts. wt. of broth, temperature of 1-3 number fermentation chamber is 25-28 degrees C, and from 4-6, the temperature is at 36-38 degrees C, supplying 100-120 m3/hour oxygen to 1-3 fermentation rooms, in 4-6 numbered fermentation chamber, passing 70-80 m3/hour oxygen, 1-6 fermentation chamber, stirring rotating speed is 25 rotations/minute, where the ferment liquid preparation includes taking 8-12 pts. wt. beef extract, 6-8 pts. wt. protein peptone, adding into 50 pts. wt. water, adding 25-35 pts. wt. cane sugar, 20-28 pts. wt. glucose, and 28-30 pts. wt. corn powder, 10 to 15 pts. wt. yeast powder, continuing stirring for 20-30 minutes, transferring into machine, stirring at the speed of 8000 rotations/minute, homogenizing for 3-5 minutes under pressure of 8-10 MPa, taking 0.5-1 pts. wt. magnesium sulfate, 0.3-0.5 pts. wt. manganese sulfate, 0.2-0.6 pts. wt. disodium hydrogen phosphate, 0.1-0.3 pts. wt. ammonium chloride, 0.1-0.3 pts. wt. calcium chloride, homogenizing the mixture, uniformly stirring, regulating the pH to 6.8-7.2 using sodium bi carbonate, sterilizing at 120-130 degrees C for 40-50 minutes to obtain the fermentation liquid, (iv) taking the inoculums obtained in step (i0 and inoculating, closing the cover, open signal modulator tube chamber of ferment part, to 1 number, 4 to 6 fermentation chamber providing illumination, 2 and 3 fermentation room is dark ferment, stirring and ventilating fermentation for 15-18 hours, stop stirring and air continuous ferment for 1-2 hours, (v) open the cover body, extracting the vertical clapboard, continuous fermentation for 5-8 hours, lower in stirring and ventilation, stop ventilating and stirring, extracting the fan-shaped plate body, filtering, adding bamboo juice liquid and horseradish extract, stirring uniformly, then starting the second electric machine heat pipe, heating at 90-100 degrees C, concentrating to 28-32%, obtaining the first compound microorganism net water microbial inoculum, and spray drying.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic representation of the fermentation tank.