NOVELTY - Energy generating device comprises a feedstock tube (10), discharging tube (20), fermentation pipeline (30), hydraulic pipeline and fermentation annular pipe. The annular fermentation pipeline is set at the top at the center position with an opening on two sides, and extends from insert plate to clapboard. The bottom of feedstock pipe, discharging pipe and annular pipe are respectively vertical. The feedstock pipe and side wall of discharging pipe extends to the biogas liquid face of annular fermentation pipe below the seat between water pressure.    USE - Energy generating device.    DETAILED DESCRIPTION - Energy generating device comprises a feedstock tube (10), discharging tube (20), fermentation pipeline (30), hydraulic pipeline and fermentation annular pipe. The annular fermentation pipeline is set at the top at the center position with an opening on two sides, and extends from insert plate to clapboard. The bottom of feedstock pipe, discharging pipe and annular pipe are respectively vertical. The feedstock pipe and side wall of discharging pipe extends to the biogas liquid face of annular fermentation pipe below the seat between water pressure. The feedstock pipe is connected with feedstock drain pipe and water discharging pipe. The inner annular fermentation pipe is set with one of the plate and an adjacent blocking plate (36) is set between inner annular fermentation pipe and plate to form one fermentation area. The top part of fermentation area is set with an independent and gas guide tube (40) where the gas-guide tube is set with valve on the upper discharging pipe. The discharging pipe is set with one-way check valve to check the water pressure of liquid flowing from the discharge pipe. The feedstock pipe and discharging water pipe are set with one-way valve for the liquid flowing from the hydraulic control into the feedstock tube.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of energy generating device.    Feedstock tube (10)    Discharging tube (20)    Fermentation pipeline (30)    Blocking plate (36)    Gas guide tube (40)