Painting device for wall heat preservation

The utility model discloses a painting device for wall heat preservation, which comprises a lifting rod assembly arranged above a base, a mounting rack is arranged on one side of the lifting rod assembly, a painting roller is arranged at one end of the mounting rack, and a control box is arranged on one side of the lifting rod assembly; the storage box is arranged above the base, a pump body is arranged above the storage box, a feeding nozzle is arranged above the mounting frame, the feeding nozzle is attached to the brushing roller, and a conveying pipe is arranged between the pump body and the feeding nozzle; the sliding groove is formed in the upper end of the base, a threaded hole is formed in the lifting rod assembly, a motor is arranged on one side of the base, a threaded rod is arranged in the sliding groove, the lifting rod assembly serves as a brushing frame, a brushing roller is attached to the wall and moves to complete brushing, the wall can be uniformly brushed, and the brushing efficiency is imp