Clinical drainage device for urinary surgery

The clinical drainage device comprises a drainage box with an opening in the upper end, a partition piece is installed at the bottom in the drainage box and divides the drainage box into a first-stage storage chamber and a second-stage storage chamber, the lower portion of the outer wall of the first-stage storage chamber is communicated with a drain valve, a plurality of ventilation holes are inwards formed in the outer wall of the second-stage storage chamber, and the ventilation holes are communicated with the drainage box. A leakage-proof cover is arranged at the opening end of the drainage box, a pull rod is rotationally connected to the upper end of the leakage-proof cover, a magnetic hook is connected to the upper end of the pull rod, a storage chamber is arranged at the position, on one side of the pull rod, of the upper end of the leakage-proof cover, a water inlet valve is arranged at the position, on the other side of the pull rod, of the upper end of the leakage-proof cover, and a rotating wheel i