Flushing syringe convenient to use

The utility model relates to the technical field of medical equipment, in particular to a washing syringe convenient to use, which comprises a needle cylinder, a needle head is mounted on the outer wall of the needle cylinder, and one end of a piston handle is arranged to extrude a piston shaft inwards, so that the piston shaft drives a piston block to slide downwards on the inner wall of the needle cylinder. The piston block pressurizes the third air bag, the third air bag extrudes the second air bag, the second air bag extrudes the first air bag, the first air bag extrudes the limiting spring, the limiting spring is compressed under stress, and when the limiting spring is compressed to a certain degree, the first air bag is broken when making contact with the needle point; in the same way, the second air bag and the third air bag are sequentially broken, liquid in the second air bag and the third air bag flows out, disinfection can be conveniently conducted in sequence, and the device is more convenient to