The invention discloses an improved multifunctional drainage device special for the
thoracic surgery department. The device comprises a rectangular box body, a
liquid storage box is installed in the rectangular box body in a sliding mode, an
air pump is fixedly installed on the inner side wall of the rectangular box body through a rectangular supporting plate, an air outlet of the
air pump is communicated with an air outflow
pipe, and an air inlet of the
air pump is communicated with an air inflow
pipe. According to the drainage device, sucked hydrops can be conveniently stored through the
liquid storage box, the hydrops in the
thoracic cavity of a patient can be conveniently and continuously drained, operation is convenient and fast; after drainage is finished, the
liquid storage box can be conveniently pulled through cooperation of a first
handle, a strip-shaped sliding groove and a
pulley; through a first rotating connector and a second rotating connector, the liquid inflow
pipe, a connecting hard pipe and a drainage pipe are conveniently disassembled and assembled, so that the
liquid storage tank, the connecting hard pipe and the drainage pipe are conveniently disinfected and cleaned; the drainage pipe is conveniently stored in time through a winding mechanism, the phenomenon that the drainage pipe is wound and knotted is avoided, and subsequent use is facilitated.