Fermentation tank utilizing tobacco field wastes to produce organic fertilizer

The utility model relates to a fermentation tank utilizing tobacco field wastes to produce an organic fertilizer. The fermentation tank comprises a tank body, wherein the tank body is arranged in a rack; a feed port is arranged at the top end of the tank body and communicated with a feed device; a discharge port is arranged at the lower end of the tank body, and a blocking door is arranged on the discharge port; and a stirring device is arranged at the top end of the tank body. The upper part of the tank body is conical, the middle part of the tank body is cylindrical, and the lower part of the tank body is back-tapered. The tank body comprises an anticorrosive layer, a heating layer, a heating-pipe fixing layer, a thermal insulating layer and a veneer layer. The stirring device comprises a stirring motor, a stirring shaft and a stirring blade, and the stirring motor is fixedly arranged at the top end of the tank body. One end of the stirring shaft is connected with an output shaft of the stirring motor, and the stirring blade is fixedly arranged on the stirring shaft. The fermentation tank can carry out high-temperature sterilization and fermentation to the tobacco field wastes in a high-temperature environment, therefore harmful bacteria in the tobacco field wastes is thoroughly killed, and meanwhile, the tobacco field wastes can be thoroughly fermented.