Air pipe butt joint device for trolley

The utility model relates to an air pipe butt joint device for a trolley, which is fixedly mounted on a support of the trolley and comprises a main air pipe, a telescopic air pipe, a mounting hoop andan air inlet belt. The main air pipe is hollow, and telescopic air pipes are sleeved at two ends of the main air pipe; one end of the telescopic air pipe is inserted into the main air pipe, and the other end is fixedly connected with one end of the air inlet belt through the mounting hoop; the other end of the air inlet belt is provided with a zipper used for being connected with other air inletbelts. According to the utility model, the air pipe with a telescopic structure is arranged; the air pipes on the trolleys can be conveniently connected with the air inlet belts at other positions through the connecting zippers on the air inlet belts, the trolleys can be conveniently moved while the air inlet amount is guaranteed, the whole equipment does not need to be operated for movable connection, the workload of work