Washing liquid barrel cleaning device

The utility model discloses a cleaning device for a washing liquid barrel. The cleaning device comprises a mounting seat, an L-shaped guide pipe and a brush, the mounting seat is assembled with a barrel opening of the washing liquid barrel; the L-shaped guide pipe is mounted on the mounting seat in a liftable manner, the L-shaped guide pipe comprises a transverse part and a longitudinal part, and the length of the transverse part is smaller than the inner diameter of a barrel opening of the washing liquid barrel; the brush comprises bristles and a bristle fixing part, part of the brush is located in the L-shaped guide pipe and limited to be in an L shape by the L-shaped guide pipe, the part, extending out of the L-shaped guide pipe, of the bristle fixing part is reset to be in a linear shape, and the part, extending out of the L-shaped guide pipe, of the bristles is in a convex shape. Therefore, the portion, extending out of the L-shaped guide pipe, of the bristles is matched with the inner wall of the washin