Smearing brush for waterproof construction

The utility model provides a smearing brush for waterproof construction, which comprises a rolling brush, and the left side of the rolling brush is respectively provided with a dismounting mechanism and an adjusting mechanism; the dismounting mechanism comprises a supporting frame, the rolling brush is rotationally connected into the supporting frame, an auxiliary block is fixedly connected to the left side face of the supporting frame, a dismounting rod is arranged on the left side of the auxiliary block, two baffles are slidably connected into the auxiliary block, and auxiliary springs are fixedly connected to the side faces, close to each other, of the two baffles. The ends, away from each other, of the two auxiliary springs are fixedly connected with the inner side wall of the auxiliary block. According to the smearing brush for waterproof construction, the function of adjusting the length of the adjusting rod is achieved, the handle can be properly adjusted in different environments, the applicability of