An outdoor unit comprising an outdoor heat exchanger, the outdoor heat exchanger comprising: a first heat exchanger portion; and a second heat exchanger portion disposed so as to be in contact with the first heat exchanger portion, the first heat exchanger portion having a plurality of first refrigerant paths (16a - 16d), the second heat exchanger portion having a plurality of second refrigerant paths (14a - 14d), a first path of the plurality of first refrigerant paths (16a - 16d) being connected to a second path of the plurality of second refrigerant paths (14a - 14d), in such a manner of excluding a path of the plurality of second refrigerant paths (14a - 14d) closest to the first heat exchanger portion and a path of the plurality of second refrigerant paths (14a - 14d) farthest from the first heat exchanger portion, the first path being located farthest from the second heat exchanger portion, the second path being disposed in a region where a flow velocity of a fluid passing through the second heat exchanger portion is relatively high, characterised in that a third path of the plurality of first refrigerant paths (16a - 16d) being connected to a fourth path of the plurality of second refrigerant paths (14a - 14d), in such a manner of excluding a path of the plurality of second refrigerant paths (14a - 14d) closest to the first heat exchanger portion and a path of the plurality of second refrigerant paths (14a - 14d) farthest from the first heat exchanger portion, the third path being located closest to the second heat exchanger portion, the fourth path being disposed in a region where a flow velocity of a fluid passing through the second heat exchanger portion is relatively high. the outdoor heat exchanger comprising: a first heat exchanger portion; and a second heat exchanger portion disposed so as to be in contact with the first heat exchanger portion, the first heat exchanger portion having a plurality of first refrigerant paths (16a - 16d), a first heat exchanger portion; and a second heat exchanger portion disposed so as to be in contact with the first heat exchanger portion, the first heat exchanger portion having a plurality of first refrigerant paths (16a - 16d), the second heat exchanger portion having a plurality of second refrigerant paths (14a - 14d), a first path of the plurality of first refrigerant paths (16a - 16d) being connected to a second path of the plurality of second refrigerant paths (14a - 14d), in such a manner of excluding a path of the plurality of second refrigerant paths (14a - 14d) closest to the first heat exchanger portion and a path of the plurality of second refrigerant paths (14a - 14d) farthest from the first heat exchanger portion, the first path being located farthest from the second heat exchanger portion, the second path being disposed in a region where a flow velocity of a fluid passing through the second heat exchanger portion is relatively high, characterised in that the first path being located farthest from the second heat exchanger portion, the second path being disposed in a region where a flow velocity of a fluid passing through the second heat exchanger portion is relatively high, characterised in that a third path of the plurality of first refrigerant paths (16a - 16d) being connected to a fourth path of the plurality of second refrigerant paths (14a - 14d), in such a manner of excluding a path of the plurality of second refrigerant paths (14a - 14d) closest to the first heat exchanger portion and a path of the plurality of second refrigerant paths (14a - 14d) farthest from the first heat exchanger portion, the third path being located closest to the second heat exchanger portion, the fourth path being disposed in a region where a flow velocity of a fluid passing through the second heat exchanger portion is relatively high. the third path being located closest to the second heat exchanger portion, the fourth path being disposed in a region where a flow velocity of a fluid passing through the second heat exchanger portion is relatively high.