Socket type air filter

The utility model relates to a socket type air filter which comprises a socket panel, an installation groove is formed in the outer side face of the socket panel, a plurality of air inlet holes are formed in the groove bottom of the installation groove in a penetrating mode, and the socket panel is a cover body of the general specification of a mains supply socket. The filter screen is arranged in the mounting groove; a plurality of air outlet holes penetrate through the filter cover, and the filter cover covers the mounting groove; the fan is arranged on the inner side surface of the socket panel and is adjacent to the mounting groove; the whole structure can be directly installed in a socket fixing groove of an existing mains supply, an original power socket is directly replaced with the socket, high universality is achieved, the indoor space is not occupied after installation, the usability of the indoor space and the convenience of maintenance can be improved, and when the socket fixing groove is installe