Air cylinder filtering device

The utility model provides an air cylinder filtering device which comprises an inlet mechanism. A connecting mechanism is fixedly arranged at the bottom of the inlet mechanism; a fixing mechanism is fixedly arranged at the top of the inlet mechanism; a shell mechanism is fixedly arranged at the bottom of the connecting mechanism, and an outlet mechanism is fixedly arranged at the bottom of the connecting mechanism. A filtering mechanism is arranged in the shell mechanism in a sliding manner; by arranging the two sets of copper powder sintering filter elements, the effect of effectively filtering gas is achieved, the filtering effect is enhanced, and the situation that the air cylinder is damaged to a certain degree due to dust particles is avoided; the I-shaped structure on the outer side of the filter frame is matched with the sliding groove, so that the effect of easily and conveniently mounting and replacing the filter element is achieved, and the phenomenon that the filter efficiency is reduced due to lon