Lamp holder with filtering function

The utility model relates to a lamp holder with a filtering function. The lamp holder is suitable for installation of a bulb and comprises a holder body unit and a lampshade unit, wherein the holder body unit comprises a holder body and a conductive seat body which is fixedly installed on the holder body and can be electrically connected with the bulb for installation; the lampshade unit comprises a hollow shade cylinder, a fan and at least one light-transmittable air filter disc, and the hollow shade cylinder is downwards covered outside the conductive seat body and is provided with at least one mounting hole; the fan is installed on the shade cylinder and can drive external air to enter into the shade cylinder from the mounting hole; and the light-transmittable air filter disc is installed on the shade cylinder, shields the mounting hole and can filter the penetrated air. Due to the structural design that the lampshade unit is provided with the light-transmittable air filter disc which can filter the air, t