Multifunctional negative pressure liquid suction device

The utility model discloses a multifunctional negative pressure liquid suction device, which belongs to the technical field of liquid suction devices and comprises a negative pressure aspirator, a first liquid suction component and a second liquid suction component. The negative pressure aspirator comprises a negative pressure host and a negative pressure cylinder; the negative pressure cylinder is provided with a first connector and a second connector, the first connector is connected with a negative pressure opening of the negative pressure main machine through a negative pressure pipe, and the second connector is detachably connected with a hose. The first liquid suction assembly comprises a connecting piece, a flow guide pipe and a plurality of branch pipes; the connecting piece is T-shaped and is provided with a first connector, a second connector and a first puncture tube, one end of the flow guide tube is detachably connected with the second connector, and the other end of the flow guide tube is connec