Air bag sampler for vacuum box

The utility model discloses an air bag sampler for a vacuum box. The air bag sampler comprises a collection device, a power device and a collection box, wherein the collection device is positioned in the collection box, and the power device is communicated with the interior of the collection box through a guide pipe; the collection box consists of a box cover and a box body, the collection device consists of an air inlet valve, a tee joint, an air outlet valve, a nozzle and an air bag; the air inlet valve and the air outlet valve are arranged on a box body, and are communicated with two opening ends, facing towards the box body, of the tee joint arranged in the box body, another opening end, deviating away from the box body, of the tee joint is communicated with the air bag through a guide pipe; the air bag is arranged at the bottom of the box body, the nozzle is arranged on the box body, and the external power device is communicated with the inner side of the box body. The air bag sampler has the beneficial