A multi-type air conditioner comprising: an outdoor unit, a high-pressure pipe, a low-pressure pipe, and a liquid line; a plurality of indoor units, each including a case connected to the outdoor unit through the high-pressure pipe, the low-pressure pipe, and the liquid line; a first indoor heat exchanger and a second indoor heat exchanger disposed in the case; a high-pressure valve and an indoor high-pressure pipe connecting the high-pressure valve to the high-pressure pipe, the high-pressure valve controlling a flow of refrigerant; a low-pressure valve and an indoor low-pressure pipe connecting the low-pressure valve to the low-pressure pipe, the low-pressure valve controlling a flow of refrigerant; an indoor high-pressure bypass pipe connecting the indoor high-pressure pipe and the first indoor heat exchanger; and a connection pipe connecting the high-pressure valve and the low-pressure valve to the second indoor heat exchanger, wherein the case comprises: a first inlet through which outside air is drawn in; a first outlet through which air, having passed through the first indoor heat exchanger and the second heat exchanger, is discharged into a room; a second inlet through which indoor air is drawn in; a second outlet through which the indoor air, drawn in through the second inlet, is discharged outside, a first indoor unit passage connecting the first inlet and the first outlet; wherein the first indoor heat exchanger and the second indoor heat exchanger are disposed on the first indoor unit passage, the first indoor heat exchanger being disposed on the side of the first outlet, and the second indoor heat exchanger being disposed on the side of the first inlet. an outdoor unit, a high-pressure pipe, a low-pressure pipe, and a liquid line; a plurality of indoor units, each including a case connected to the outdoor unit through the high-pressure pipe, the low-pressure pipe, and the liquid line; a first indoor heat exchanger and a second indoor heat exchanger disposed in the case; a high-pressure valve and an indoor high-pressure pipe connecting the high-pressure valve to the high-pressure pipe, the high-pressure valve controlling a flow of refrigerant; a low-pressure valve and an indoor low-pressure pipe connecting the low-pressure valve to the low-pressure pipe, the low-pressure valve controlling a flow of refrigerant; an indoor high-pressure bypass pipe connecting the indoor high-pressure pipe and the first indoor heat exchanger; and a connection pipe connecting the high-pressure valve and the low-pressure valve to the second indoor heat exchanger, wherein the case comprises: a first inlet through which outside air is drawn in; a first outlet through which air, having passed through the first indoor heat exchanger and the second heat exchanger, is discharged into a room; a second inlet through which indoor air is drawn in; a second outlet through which the indoor air, drawn in through the second inlet, is discharged outside, a first indoor unit passage connecting the first inlet and the first outlet; wherein the first indoor heat exchanger and the second indoor heat exchanger are disposed on the first indoor unit passage, the first indoor heat exchanger being disposed on the side of the first outlet, and the second indoor heat exchanger being disposed on the side of the first inlet. a first inlet through which outside air is drawn in; a first outlet through which air, having passed through the first indoor heat exchanger and the second heat exchanger, is discharged into a room; a second inlet through which indoor air is drawn in; a second outlet through which the indoor air, drawn in through the second inlet, is discharged outside, a first indoor unit passage connecting the first inlet and the first outlet; wherein the first indoor heat exchanger and the second indoor heat exchanger are disposed on the first indoor unit passage, the first indoor heat exchanger being disposed on the side of the first outlet, and the second indoor heat exchanger being disposed on the side of the first inlet.