Air conditioner for vehicle

The present invention relates to an air conditioner for a vehicle, which includes: a scroll case (120); a centrifugal fan (145) rotatably mounted inside the scroll case; an intake duct (150) aligned on one side of the scroll case (120) in an axial direction of the centrifugal fan (145); and a motor housing (140) coupled to the other side of the scroll case, the air conditioner comprising: a connection cover (130) coupled to one side of the scroll case (120) for connecting the intake duct (150) and the scroll case with each other; and including: an inlet ring (131) formed on an end portion thereof to guide the air introduced through the intake duct (150) to the inside of the centrifugal fan (145); and a dual ring (132) formed on the circumference of the inlet ring (131) and adapted to prevent a re-introduction of the air to the centrifugal fan.