Anaerobic tower capable of preventing sludge calcification

The utility model discloses an anaerobic tower capable of preventing sludge calcification, which comprises an anaerobic tower body, the bottom of the inner cavity of the anaerobic tower body is fixedly connected with a protective box, the inner cavity of the protective box is fixedly connected with a motor, and the output shaft of the motor penetrates to the outside of the protective box and is in transmission connection with a fixed disc. And stirring blades are fixedly connected to the periphery of the surface of the fixed disc. The anaerobic tower body is used for providing a purification space for sewage, the protection box is used for protecting the motor and preventing the motor from being in contact with the sewage to influence normal use, and the motor is used for driving the fixed disc to rotate, so that the problems that the fluidity in the anaerobic tower is poor, the water circulation speed in sludge is low, and the operation is inconvenient are solved. And when the concentration of calcium ions i