Disposable cervix dilatation balloon catheter

The utility model relates to the field of medical equipment, in particular to a disposable cervix dilatation balloon catheter which comprises a catheter body, a first branch pipe, a second branch pipe, a third branch pipe and a fourth branch pipe are sequentially arranged on the inner wall of the catheter body in the circumferential direction, and a top head is arranged at the top end of the catheter body. Check valves are arranged at the lower end of the first branch pipe and the lower end of the third branch pipe, flow valves are arranged at the lower end of the second branch pipe and the lower end of the fourth branch pipe, a first balloon is arranged on the peripheral face of the end, away from the check valves, of the catheter in a sleeving mode, and the first branch pipe is connected into the first balloon. A plurality of first through holes are formed in the first balloon, the peripheral surface of the first balloon is sleeved with a second balloon, the second branch pipe is connected into the second b