Formaldehyde harmful gas sample collector

The utility model provides a formaldehyde harmful gas sample collector, which belongs to the field of gas sampling, and comprises a mounting shell, an adjusting component arranged at the top of the mounting shell, and a gas suction component arranged on one side of the mounting shell, two electric telescopic rods on a mounting plate are matched with two connecting rods to drive a supporting plate to move, the supporting plate is matched with a first gas guide pipe and a second gas guide pipe to drive a telescopic hose to move, and meanwhile, the supporting plate is matched with a protective pipe to drive a gas suction cover to move, so that the gas collecting height of the device is adjusted; the bottom of the protective tube is clamped with the inner wall of the annular groove, so that the protective tube and the supporting plate can be conveniently mounted and dismounted, gas in air is sucked in by the suction hood, and the gas enters the second gas guide tube after being doubly filtered by the circular fil