The utility model discloses a rust-proof shaft sleeve capable of being rapidly replaced and belongs to the field of cold rolling galvanization production equipment. The rust-proof shaft sleeve is used for preventing the positions where a rotating pin is connected with a support and a connecting rod from rusting. According to the technical scheme, the shaft sleeve is made of copper materials or nylon materials, the inner diameter of the shaft sleeve is matched with the diameter of the rotating pin, the rotating pin is sleeved with the shaft sleeve, and the outer wall of the shaft sleeve makes contact with the hole wall of pin holes, where the rotating pin is installed, in the support and the connecting rod. According to the rust-proof shaft sleeve, the inner surfaces of the pin holes, where the rotating pin is installed, in the support and the connecting rod can be prevented from making excessive contact with alkaline steam, and rust is prevented from being produced between the support or the connection rod and the rotating pin. The rust-proof shaft sleeve is divided into three sections corresponding to the support and the connecting rod respectively, and disassembly and assembly can be more convenient. An O-shaped ring can play a role in sealing the three sections in a rust-proof mode. The rust-proof shaft sleeve is simple in structure, convenient to use and easy to maintain and replace, it is ensured that production is smoothly carried out, the problem that the support and the connection rod rust and are scrapped is avoided, replacement parts are saved, and the production cost is reduced.