Food cooling and fermenting tower

The utility model discloses a food cooling leavening tower which comprises a cooling tower shell, an ascending type spiral conveying tower and a descending type spiral conveying tower, the ascending type spiral conveying tower and the descending type spiral conveying tower are arranged in the cooling tower shell, sliding groove plates are fixedly installed on the upper portions and the lower portions of the two sides of an inner cavity of the cooling tower shell, and sliding blocks are connected into the sliding groove plates in a sliding mode. And one side of the sliding block is fixedly connected with an air supply mechanism. According to the food cooling and fermenting tower, through cooperation of a linkage rod, a linkage plate, a motor, a cam and an elastic mechanism, when the motor rotates, an air supply mechanism can move up and down back and forth, so that an air supply nozzle moves up and down back and forth, air supply of the cooling tower is more uniform, cold air flow is more uniformly distributed