Filtering device for synthetic slow-release type fruit fly sex trapping agent

The utility model relates to the technical field of trapping agents, and discloses a filter device for a synthetic slow-release type fruit fly trapping agent, which comprises a trapping agent collecting shell, the lower end of the trapping agent collecting shell is fixedly connected with a centralized collecting tank, and the lower part of the centralized collecting tank is fixedly connected with supporting legs. The inner side of the trapping agent collecting shell is fixedly connected with a first limiting plate. According to the filtering device for the synthetic slow-release type fruit fly trapping agent, a filtering box is installed in a trapping agent collecting shell, meanwhile, the filtering box drives the position between a first gear and a second limiting plate to be mutually sleeved and limited, and meanwhile a limiting pressing plate is installed at the top end of the trapping agent collecting shell; the limiting pressing plate assists in driving the position of the filter box to conduct clamping