Lime kiln air supply device

The utility model relates to the technical field of lime kiln equipment, in particular to an air supply device of a lime kiln, which comprises an air supply unit, a conveying pipe sleeved on the air supply unit, a connecting rod arranged in the conveying pipe, a reed sleeved on the connecting pipe, two through holes arranged on the conveying pipe, two straight parts arranged on the reed, a blocking rod arranged on each straight part, and a blocking rod arranged on the blocking rod. A conveying pipe is arranged in the lime kiln, two threaded holes are formed in the conveying pipe, a screw is arranged in each threaded hole, a hand wheel is arranged on each screw, each screw is connected with a reed, two grooves are formed in the lime kiln, and four clamping grooves are symmetrically formed in the inner wall of the lime kiln. According to the air supply unit, the hand wheels and the screw rod drive the reed to be compressed/released, then the two blocking rods are driven to enter the four clamping grooves formed