NOVELTY - An air pressure flow liquid promoting super-efficient methane gas generating system comprises feeding pipe (11), discharging pipe (12), and horizontally arranged U-type fermentation pipeline (20) vertically connected to feeding pipe and discharging pipe at its 2 ends in which hydraulic pipe (30) is placed between U-type fermentation pipeline, feeding pipe water discharging hole (32) is provided between feeding pipe and hydraulic pipe connection, and discharging pipe drain hole (50) is provided between discharging pipe and hydraulic pipe connection.    USE - Air pressure flow liquid promoting super-efficient methane gas generating system.    ADVANTAGE - The device fully flows methane liquid in system, uniformly distributes strain, effectively prevents crusting phenomenon, and has high production rate, short route, and good circulation effect.    DETAILED DESCRIPTION - An air pressure flow liquid promoting super-efficient methane gas generating system comprises feeding pipe, discharging pipe, and horizontally arranged U-type fermentation pipeline vertically connected to feeding pipe and discharging pipe at its 2 ends in which hydraulic pipe is placed between U-type fermentation pipeline, feeding pipe water discharging hole is provided between feeding pipe and hydraulic pipe connection, discharging pipe drain hole is provided between discharging pipe and hydraulic pipe connection, feeding pipe plate is set in U-type fermentation pipeline and feeding pipe connection, discharge pipe plate is set in U-type fermentation pipeline and discharging pipe connection, gas collector pipe (40) is set on U-type fermentation pipeline, cloth device is connected to hydraulic pipe comprising drainage, U-type fermentation cloth bacteria, and fungus hole composition, cloth bacteria device is connected to hydraulic feeling pipe and discharging pipe from one end side, and fixed to inner U-type fermentation pipeline at other end, and U-type fermentation cloth bacteria is adapted and extended in U-type fermentation pipeline, and is provided with multiple vertical fungus hole composition.    DESCRIPTION OF DRAWING(S) - The drawing shows a structural schematic diagram of air pressure flow liquid promoting super-efficient methane gas generating system.    Feeding pipe (11)    Discharging pipe (12)    U-type fermentation pipeline (20)    Hydraulic pipe (30)    Feeding pipe water discharging hole (32)    Gas collector pipe (40)    Discharging pipe drain hole (50)