Bladder irrigation connecting pipe

The invention discloses a bladder irrigation connecting pipe. The connecting pipe comprises a main pipeline, and the two ends of the main pipeline are inserted into and communicated with a urinary catheter and a bladder irrigation bag respectively; a short branch pipeline communicated with the main pipeline outwards extends on a pipeline communicated with one side of the urinary catheter, and an anti-leakage rubber plug is arranged at the free end of the branch pipeline; a flow direction display device is arranged in the portion, between the branch pipeline and the bladder irrigation bag, of the main pipeline; the flow display device comprises a synthetic fiber, one end of the synthetic fiber is fixed on the inner wall of the connecting pipe, the tensile elongation of the fiber is not larger than the inner diameter of the connecting pipe, and an amplifying and observing device is arranged on the wall, over the fiber, of the connecting pipe. Medical staff can visually observe whether irrigation fluid has stopp