Pipeline residue cleaning device

The utility model belongs to the technical field of pipeline cleaning, and particularly relates to a pipeline residue cleaning device which comprises a base, a winding motor and an air pump are arranged on the base, one end of an air pipe is connected to the air pump, the other end of the air pipe is connected with an iron pipe through a connecting nut, a first motor is arranged on the iron pipe, and the output end of the first motor is connected to a first lead screw. The other end of the first lead screw is movably installed on the first sliding ring, a roller is arranged on the roller support, the roller support and the first sliding ring are movably connected through a roller branch, a second motor is arranged on the iron pipe, the output end of the second motor is connected to the second lead screw, and the other end of the second lead screw is movably installed on the second sliding ring. The air bag support and the second sliding ring are movably connected through the air bag branch, the opening size o