Filtering device for heating ventilation air conditioner

The utility model relates to the technical field of heating ventilation air conditioners. The utility model relates to a filter device, in particular to a heating-ventilation-air-conditioner filter device. Box body, first fan and swing blade, a first fan penetrates through the middle of the rear wall of the box body; a shower head is connected to the top of the rear side of the interior of the boxbody in a penetrating mode, a glass fiber filter layer is fixedly connected to the front end of the shower head, an HEPA filter screen is fixedly connected to the front end of the glass fiber filterlayer, an activated carbon layer is fixedly connected to the front end of the HEPA filter screen, and a baffle is fixedly connected between the activated carbon layer and the swing blades. According to the utility model, the heating box is arranged, so that water after air flushing can be evaporated, and then water vapor is mixed in filtered air and discharged into a room, therefore, water resources can be recycled, and th