Liquid edible mushroom strain fermentation tank

The utility model discloses a fermentation tank, in particular to a liquid edible mushroom strain fermentation tank, which comprises a tank body (3) and a heating device (2). The tank body (3) comprises a fermentation cavity (3-2) and a cooling cavity (3-1), the heating device (2) comprises an electric heater (2-1) and a heating medium cavity (2-2), and the heating medium cavity (2-2) is filled with heat-conducting mediums. The liquid edible mushroom strain fermentation tank is characterized in that the bottom of the cooling cavity (3-1) of the tank body (3) adopts a non-horizontal plane, and the lowest part of the bottom of the cooling cavity (3-1) is provided with a water drainage pipe (3-5). Compared with the prior art, obsolete effusion of a previous operation in the fermentation tank can be discharged completely after each fermentation operation, the whole fermentation tank can be maintained clear before operation, and thus the effect of fermentation can be ensured.