Multi-layer automatic circulation fermentation equipment

The utility model discloses a multi-layer automatic circulation fermentation equipment, including: at least one fermentation bed, loading conveyor and transfer conveyor, the fermentation bed is provided with a plurality of fermentation bed bodies that are distributed up and down at intervals, each fermentation bed body is equipped with a feed conveyor, and the transfer conveyor is equipped with a plurality of discharge conveyors. Materials of the fermentation bed body on the upper layer can fall onto the fermentation bed body on the lower layer under the conveying of the feeding conveyor; the feeding conveyor is in butt joint with the fermentation bed body located on the uppermost layer of the fermentation bed and used for conveying materials to the fermentation bed body. One end of the material transferring conveyor is in butt joint with the output end of the fermentation bed, the other end of the material transferring conveyor is in butt joint with the feeding conveyor, and the material transferring conveyo