The utility model provides a spraying dust-settling device of an electric traction coal mining machine, belongs to the field of spraying of coal mining machines, and aims to solve the problems of highcost, time waste and labor waste of the conventional method for processing faults of a spraying system in the electric traction coal mining machine. The device comprises a water pipe, a plurality ofnozzles and a plurality of water pipe fixing seats, each water pipe fixing base comprises two supports, a pressing plate, two studs and two nuts. The shape of the water pipe is the same as that of theouter edge of a rocker arm of the electric traction coal mining machine, the water pipe is fixed to the outer edge of the rocker arm through a plurality of water pipe fixing bases, one end of the water pipe is connected with a coal mine underground water source through a KJ-series quick connector, the other end of the water pipe is closed, and a plurality of nozzles are distributed on the water pipe. The two supports in each water pipe fixing base are welded to the rocker arm and located on the two sides of the water pipe, one ends of the two studs are in threaded connection with the two supports respectively, round holes are formed in the two sides of the pressing plate, and the other ends of the two studs penetrate through the round holes in the two sides of the pressing plate respectively to be connected with the two nuts.