Pump for discharging water both direction having two impeller

PURPOSE: A bidirectional pump having two impellers are provided to sufficiently obtain a fluid amount of a pump regardless of a rotation direction. CONSTITUTION: A bidirectional pump having two impellers includes a motor shaft(3), a first blower(15) and a second blower(18), a first impeller and a second impeller, and a clutch unit. The motor shaft(3) rotates in the central part of a motor casing(1) having motor having a rotor. The first blower(15) and the second blower(18) are installed on both end parts of the motor shaft(3). The first impeller and the second impeller are installed in the inner sides of the first blower(15) and the second blower(18) and rotate with the both end parts of the motor shaft(3).