Flue gas analyzer for gaseous pollutant detection

The utility model relates to a flue gas analyzer for gaseous pollutant detection, which comprises an analyzer body, a hose is fixedly mounted on the analyzer body, one end of the hose far away from the analyzer body is communicated with a detection head, and a fixing mechanism is arranged on the side surface of the analyzer body. The fixing mechanism comprises a mounting seat, a fixing plate and a clamping seat which are arranged on the analyzer body, a fixing cylinder arranged on the mounting seat, a magnetic ring arranged on the fixing cylinder, a magnetic block arranged on the fixing plate and an extension assembly arranged in the fixing cylinder. According to the flue gas analyzer for gaseous pollutant detection, the extension distance between an extension rod and a fixed cylinder is adjusted through threads by virtue of an adjusting sleeve, so that the extension distance of a detection head clamped on the extension rod is convenient to adjust, and meanwhile, by virtue of a clamping seat, a magnetic block