Gas channel cleaning structure for gas monitoring device

The utility model discloses an air passage cleaning structure for a gas monitoring device, which relates to the field of air passage cleaning and comprises an air tank and an exhaust pipe, an air inlet pipe is mounted at the top end of the air tank, an input end of an air pump is connected with the air inlet pipe, a filter screen is mounted on the inner wall of the air inlet pipe, and an output end of the air pump is connected with an air delivery pipe penetrating into the air tank; a filter element is detachably connected to the interior of the air box, an isolation bin is fixedly installed at the position, below the filter element, in the air box, a guide pipe is connected to the bottom end of the isolation bin, and a one-way valve structure used for air inflow is installed on the guide pipe. According to the utility model, the air pump, the filter element and the infrared spectrometer are arranged, the infrared spectrometer and the infrared spectrometer for monitoring gas are different individuals, externa