Atmosphere VOC detection device

The utility model relates to a VOC detects technical field, discloses an atmosphere VOC detection device, including fan and the gas collecting device that is connected with the fan, by supreme filternet layer, activated carbon layer, the dry layer of being equipped with in proper order down, is equipped with first air inlet on the left side wall of gas collecting device lower extreme in the gas collecting device, first air inlet is established in filter net layer's below, is equipped with first gas outlet on the right side wall of gas collecting device upper end, and the top dry layer is established to first gas outlet, still include the gaseous detection case of being connected with gas collecting device, the upper end of gaseous detection case is equipped with the second air inlet, andsecond air inlet upper end is equipped with quantitative air pump, and first gas outlet and second air inlet are connected through quantitative air pump, are equipped with the VOC sensor in the gaseous detection case, and gase