Two-way pumping device for consumption of residual amount of liquid

A two-way pumping device for consumption of a residual amount of a liquid, the two-way pumping device being capable of discharging a liquid to an outside and comprising:

• a vessel, having an inner space for storing a liquid and a coupling hole for communicating with the inner space;
• a body portion coupled to the coupling hole and including a first chamber and a second chamber for storing the liquid;
• a suction pipe configured to communicate with the first chamber and extending to an outside of the body portion;
• a first bearing provided between the first chamber and the suction pipe to open and close the suction pipe;
• a pump portion, slidably coupled to the body portion and including a head portion protruding outside the body portion;
• a first piston, coupled to the pump portion to slidably move together with the pump portion and configured to slidably move in the first chamber;
• a second piston, coupled to the pump portion to slidably move together with the pump portion and configured to slidably move in the second chamber;
• a spring, provided in a lower portion of the pump portion to apply an elastic restoring force to the pump portion;
• a suction portion, for causing the liquid to flow into the second chamber;
• a first discharge portion, provided in the head portion of the pump portion to communicate with the first chamber to discharge a fluid in the first chamber to the outside;
• and
• a second discharge portion, provided in the head portion of the pump portion to communicate with the second chamber to discharge a fluid in the second chamber to the outside,
• wherein when the vessel is arranged in a forward direction, the fluid in the first chamber is discharged through the first discharge portion, and
• when the vessel is arranged in a reverse direction, the fluid in the second chamber is discharged through the second discharge portion,
• wherein the body portion includes a partition portion that partitions the body portion into the first chamber and the second chamber,
• wherein an air discharge hole is provided in an upper portion of the first chamber.