Automatic dust suppression spraying device for open-air ditching blasting

The utility model discloses an automatic dust suppression spraying device for open-air ditching blasting, which relates to the technical field of environmental protection and dust prevention and comprises a dust suppression table, the dust suppression table comprises a bottom table and a top table, and spraying strips are arranged on one side, adjacent to the bottom table, of the top table in a linear array mode. A collecting groove matched with the spraying strip is formed in the side, adjacent to the top table, of the bottom table, a driving unit is further arranged between the bottom table and the top table, and the driving unit is used for driving the top table to ascend and descend in the vertical direction of the bottom table. Smoke dust is treated through a water mist wall sprayed by the mist spraying strip, the height of the water mist wall sprayed by the mist spraying strip can be adjusted according to the actual blasting situation, so that the dust suppression device can adapt to different blasting