Connecting device for condenser pipe

The utility model discloses a connecting device for a condenser pipe, which comprises a connector I, a screw cap sleeved outside the connector I in a sliding manner, a connector II in threaded connection with the inner wall of the screw cap, clamping sleeve screw caps in threaded connection with the tail ends of the connector I and the connector II, and a plurality of pipe teeth I which are annularly distributed at equal intervals and are welded on the outer wall of the connector I; a plurality of second pipe teeth annularly distributed at equal intervals are welded to the inner wall of the second connector, a sealing ring is arranged on the inner wall of the second connector, second threads are arranged above the outer wall of the second connector, internal connection threads matched with the second threads are arranged on the inner wall of the clamping sleeve nut, and an inner blade is fixedly installed on the inner wall of the top end of the clamping sleeve nut. Through the arrangement of the first pipe to