Animal manure organic fertilizer fermentation tank

The utility model discloses an animal manure organic fertilizer fermentation tank which comprises a tank body (1), wherein the tank body (1) consists of two side walls and a bottom plate; the bottom plate is provided with at least two trenches (8) which are parallel to the length directions of the side walls, movable plates (6) are installed above the trenches and are provided with a plurality of through holes (7), and the upper planes of the movable plates (8) are aligned with the upper plane of the bottom plate of the tank body (1); the lower sides of the trenches (8) are connected with an inside ditch (5), the inside ditch (5) is further connected with an outside ditch (4), and the outside ditch (4) is connected with a sewage treatment system. High pressure gas pipes (2) are installed in the trenches (8) and are provided with a plurality of air nozzles (9) and are connected with an air compressor (3). The animal manure organic fertilizer fermentation tank disclosed by the utility model is simple and reasonable in structure and fast in fermentation speed and sewage is accepted for innocent treatment.