Pasture biogas residue drying system

The utility model provides a pasture biogas residue drying system, which belongs to the technical field of excrement treatment and comprises a fermentation tank, a drying device, a micro-gas turbine and a hot-blast stove. The fermentation tank is used for fermenting feces to form biogas and biogas residues; the drying device comprises a first drying machine and a second drying machine which are sequentially connected from the fermentation tank, and a first discharge pipe capable of being opened and closed is arranged at the tail end of the first drying machine; a second discharge pipe is arranged at the tail end of the second dryer; the micro-gas turbine is connected with the fermentation tank and the first dryer; the hot-blast stove is connected with the fermentation tank and the second dryer. According to the pasture biogas residue drying system, heat sources are provided for the first drying machine and the second drying machine through the micro-gas turbine and the hot blast stove, and the drying efficien