Gas filtering device for glow discharge mass spectrometer

The utility model relates to the technical field of glow discharge mass spectrometers, in particular to a gas filtering device for a glow discharge mass spectrometer, which comprises a gas impurity filtering box, and a gas-water backflushing filtering pipe, a circulating water flushing filtering tank and an electrolysis filtering tank are distributed on the upper surface of the gas impurity filtering box. The air-water backflushing filter pipe is fixedly connected with the circulating water flushing filter tank, and the side surfaces of the circulating water flushing filter tank and the electrolytic filter tank are fixedly connected with transmission pipes and are connected through two ends of the transmission pipes; according to the gas filtering device for the glow discharge mass spectrometer, a communicating structure of the circulating water flushing filtering tank and the transmission pipe is arranged on the box body, a communicating structure of the filter shell and the clear water tank is adopted, and