Concrete solidification prevention device

The utility model relates to a concrete solidification prevention device which comprises a tank body, a stirring shaft is rotationally installed in the tank body through a bearing, a first motor is arranged in cooperation with the stirring shaft, a first spiral blade is arranged on the stirring shaft, a second spiral blade is reversely arranged in a sleeving mode in cooperation with the first spiral blade, and a connecting rod is arranged on the stirring shaft. A scraper is arranged at the tail end of the connecting rod and matched with the inner wall of the tank body, a discharging hopper is arranged at the bottom end of the tank body, a discharging box is arranged at the bottom end of the discharging hopper, a discharging assembly is arranged in the discharging box, the tank body, the discharging hopper and the discharging box each comprise a heat transfer inner shell, a heating coil is arranged on the outer side of the heat transfer inner shell in a communicated and wound mode, and a heat preservation cott