Filtering device for heating ventilation air conditioner

The utility model provides a filtering device for a heating ventilation air conditioner. The filtering device comprises a mounting frame, a first filter screen and a second filter screen which are detachably mounted are sequentially arranged in the mounting frame fixedly mounted at an air inlet of the heating ventilation air conditioner from front to back, the first filter screen is a stainless steel filter screen, and the second filter screen is an electrostatic cotton filter screen. According to the filter, the first filter screen and the second filter screen can be conveniently disassembled and assembled, so that the first filter screen and the second filter screen can be conveniently cleaned or replaced, the first filter screen and the second filter screen are prevented from being blocked, and by arranging materials of the first filter screen and the second filter screen, double-layer filtering can be achieved, and the filtering effect is guaranteed. 本实用新型提供一种暖通空调用的过滤装置，包括安装框架；固定安装在暖通空调进风口处的所述安装框架内从前到后依次设