Disc harrow convenient for crushing soil

The invention relates to the technical field of disc harrows, and discloses a disc harrow convenient to crush soil, the disc harrow comprises two support frames, two bearing seats and a blocking cover, the upper surface of each support frame is fixedly connected with the bottom surface of the corresponding bearing seat, the bottom surface of the blocking cover is in contact with the upper surface of the corresponding support frame, and a rotating shaft is fixedly mounted on the inner walls of the two bearing seats jointly; a driving motor is fixedly installed at the left end of the rotating shaft, the right side face of the driving motor is fixedly connected with the left side face of one of the two bearing seats, the outer surface of the rotating shaft is fixedly connected with the inner wall of a blocking cover, two sets of through holes are formed in the upper surface of the blocking cover, and a water pipe is fixedly installed on the inner wall of each set of through holes. By arranging the supporting fra