Compost fermentation device for livestock farm excrement recovery

The utility model relates to a compost fermentation device for livestock farm excrement recovery, which is characterized by comprising a bin body, a compost fermentation cavity is arranged in the bin body, and a breather pipe is arranged at the bottom of the fermentation cavity; the aeration assembly is used for introducing air into the fermentation cavity and comprises a main aeration pipe and an auxiliary aeration pipe, the main aeration pipe is arranged on the outer side of the bin body, one end of the main aeration pipe is of an open structure, the other end of the main aeration pipe is of a closed structure, one end of the auxiliary aeration pipe is communicated with the main aeration pipe, and the other end of the auxiliary aeration pipe extends into the ventilation pipe; the aeration main pipe is externally connected with an air source through an open structure, so that air is in contact with excrement at the bottom of the fermentation cavity through the aeration auxiliary pipes. The utility model has