Pavement core drilling anti-pollution device

The utility model discloses a road surface core drilling anti-pollution device which comprises a core drilling machine side support and further comprises a sponge sealing gasket, a stainless steel plate base, a flow guide cylinder, a blow-off pipe, a sewage collecting device, a backup plate, a height adjusting nut, a width adjusting nut and a fixing block. The sponge sealing gasket is attached to the lower end of the stainless steel plate base, the guide cylinder is arranged in the middle of the stainless steel plate base and fixedly connected, the blow-off pipe is fixedly installed on the side face of the guide cylinder, and the end, away from the guide cylinder, of the blow-off pipe is fixedly installed on the sewage collecting device. According to the utility model, the polymer sponge is used as a sealing device between the pavement and the guide cylinder, part of scattered sewage is adsorbed, and the guide cylinder and the blow-off pipe are connected with the sewage collecting device, so that the sewage i