Microbial carbon source preparation device based on solid waste treatment

The invention discloses a microbial carbon source preparation device based on solid waste treatment, the microbial carbon source preparation device comprises a fermentation tank and an auger conveying mechanism, the fermentation tank is provided with a heating element, the heating element is used for heating materials in the fermentation tank, the top of the fermentation tank is provided with a sludge inlet, and the upper part of the fermentation tank is provided with a discharge outlet; the auger conveying mechanism comprises a machine shell, a spiral blade and a driving part, the machine shell is of a tubular structure, one end of the machine shell is communicated with the bottom of the fermentation tank, the machine shell gradually and obliquely extends upwards in the direction away from the fermentation tank, and the driving part is installed at the end, away from the bottom of the fermentation tank, of the machine shell and used for driving the spiral blade to rotate; a return pipe is connected between t