Gas sampling device used for greenhouse gas station and provided with filtering assembly

The utility model discloses a gas sampling device with a filter assembly for a greenhouse gas station, which comprises a filter box and a sucking pump, the inner wall of the filter box close to the bottom end is connected with a deflection shaft through a bearing, and the outer side of the deflection shaft facing upwards is fixedly connected with a fitting piece. The gas sampling device used for the greenhouse gas station and provided with the filter assembly has the advantages that when gas is filtered through the filter screen plate, the impact of the gas drives the sealing follow-up sliding blocks at the two ends of the mounting frame on the outer side of the filter screen plate to slide in the two offset limiting rails, in the sliding process, the oscillation spring rod is passively compressed, and the sealing follow-up sliding blocks are driven to slide in the two offset limiting rails; the mounting frame is always in an oscillating state, so that dust and small-particle impurities attached to the filter