Method for brushing waterproof paint on pipe out of wall

The invention relates to the technical field of building construction, in particular to a method for brushing waterproof paint at a wall outlet pipe, which comprises the following steps that a brush is processed according to the diameter size of an actual wall outlet sleeve on site, the brush comprises an annular base, and bristles are arranged on one side of the annular base; processing a connecting rod according to the length of the on-site wall casing, and manufacturing an annular handle; the right end of the connecting rod is fixedly connected with the annular handle; brushing bristles of a brush are stained with waterproof paint; the inner ring of the annular base is sleeved with the wall-out casing pipe, the bristles are attached to the concrete wall at the pipe root of the wall-out casing pipe, the annular handle is rotated, and the wall at the pipe root of the wall-out casing pipe is coated with waterproof paint; by means of the tool, construction operation is convenient and fast, waterproof paint is