Photoelectric sensing device for high-dust environment

The utility model relates to the technical field of photoelectric sensing, in particular to a photoelectric sensing device for a high-dust environment, which comprises a mounting seat, a sensor is fixedly mounted in the mounting seat, detection holes are formed in the positions, opposite to the signal output end and the signal input end of the sensor, of the mounting seat, and an air pipe quick connector and a wiring hole are mounted on the side wall of the mounting seat in a penetrating manner; the air pipe quick connector is connected with a filtering assembly through an air pipe, the filtering assembly comprises multi-stage filtering, the filtering assembly is connected with an air pump through an air pipe, the filtering assembly is connected with a plurality of mounting seats, and during use, the air pressure in the mounting seats is higher than the air pressure in the spraying chamber. The air pressure in the mounting base is higher than that of the outside through the air pump, air is exhausted through