Gaseous pollutant sampling mechanism and sampling system convenient for aerial survey of airplanes

The utility model discloses a gaseous pollutant sampling mechanism convenient for aerial survey of an airplane and a sampling system. The sample injection mechanism solves the problems that a sample injection mechanism in the prior art is complex in structure; portable problem, the sampling loss is small, and the whole device is convenient to carry; according to the scheme, the utility model discloses a gaseous pollutant sampling mechanism convenient for aerial survey of an airplane. The sampling device comprises an L-shaped sampling pipe, a gas inlet nozzle is arranged on one side of the sampling pipe; the inlet side size of the air inlet nozzle is smaller than the outlet side size of the air inlet nozzle; the air inlet nozzle and the sampling pipe are of an integrated structure; the other side of the sampling pipe can penetrate through an opening of an airplane, a fixing plate capable of being connected with the interior of the airplane is arranged on the side, capable of penetratingthrough the airplane, of