Coated paper character erasing tool

The utility model discloses a coated paper font erasing tool which comprises a cylinder body, the lower end of the cylinder body is in threaded connection with a pipe head, a box body is placed on the inner side of the lower end of the cylinder body, the upper side of the box body is connected with a liquid storage bag, the lower side of the box body is connected with a liquid guide pipe, and the liquid guide pipe extends into the pipe head. Comprising a brush body, and the upper portion of the brush body is embedded into a pipe head. Comprising a lower cover, a first annular groove is formed in the inner side of the upper end of the lower cover, and a plurality of first protrusions matched with the first annular groove are arranged on the outer side of the lower portion of a pipe head; the upper side of the upper end of the barrel is connected with a spring which is connected with a cylinder, and the cylinder is sleeved with a cotton sleeve. Comprising an upper cover, a second annular groove is formed in the