Medicated leaven fermentation device

The utility model provides a medicated leaven fermentation device. The medicated leaven fermentation device comprises a fermentation tank, a hollow shaft, an air pipe and a driving mechanism, wherein a feeding sealing door and an exhaust valve are arranged on the top wall of the fermentation tank, and a discharging sealing door is arranged on the bottom wall of the fermentation tank; the hollow shaft is rotationally connected into the fermentation tank and extends in the vertical direction, the bottom end of the hollow shaft is closed, the top end of the hollow shaft extends out of the fermentation tank and is provided with a rotary joint, and a plurality of aeration holes and a plurality of stirring rods are distributed on the peripheral wall, located in the fermentation tank, of the hollow shaft at intervals up and down; one end of the air pipe is connected with the rotary joint, and the other end of the air pipe is connected with a purified air source; the driving mechanism is arranged on the top wall of t