NOVELTY - Assembled artificial wetland system comprises an artificial wetland tank, a water inlet pipe, an aeration device and a water outlet unit. The system comprises immobilized microorganism plate. The artificial wetland tank from top to bottom comprises 4 layers including gravel layer, coal slag layer, immobilized microorganism layer and gravel layer. The gravel layer is set with water inlet pipe and water distribution branch tube. The inlet pipe passes through a wall. A liquid flow meter is installed on water inlet tube. The microorganism layer is set with the immobilized microorganism plate.    USE - Used as an assembled artificial wetland system.    ADVANTAGE - The artificial wetland system: can organically combine microorganism process and artificial wetland for increasing artificial wetland sewage processing efficiency.    DETAILED DESCRIPTION - Assembled artificial wetland system comprises an artificial wetland tank, a water inlet pipe, an aeration device and a water outlet unit. The system further comprises immobilized microorganism plate. The artificial wetland tank from top to bottom comprises 4 layers including gravel layer, coal slag layer, immobilized microorganism layer and gravel layer. The gravel layer is set with the water inlet pipe and water distribution branch tube. The water inlet pipe passes through a wall. A liquid flow meter is installed on water inlet tube. The immobilized microorganism layer is set with the immobilized microorganism plate. The lower part of the immobilized microorganism plate is mounted with an aeration pipe and aeration branch tube of an aeration device. The aeration branch pipe passes through the wall. The aeration branch pipe is mounted with a gas valve and a gas flow meter. A steel wire network is set between the immobilized microorganism layer and gravel layer. The water outlet unit is set with a water hole, a water collecting groove and water collecting groove drain pipe. The water outlet unit is set on the upper end of the artificial wetland tank. The water inlet pipe is oppositely set to the wall. The artificial wetland tank is set with an upper tank body, a middle tank body and a bottom tank body containing three parts. The upper part tank body is set with a convex port at the bottom of the wall. The middle tank body of the upper wall is set with a concave tank set with the convex port at the bottom. The bottom tank body is provided with the concave tank at the upper wall. The tank body is matched between the convex port and concave tank. The artificial marsh tank is made of steel plate material.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the assembled artificial wetland system.