A package-type fluid machine comprising: a plurality of compressor units (31,3101,3102,3103) and a plurality of inverters (1201,1202,1203), wherein the compressor units (31,3101,3102,3103) and the inverters (1201,1202,1203) are disposed in a plurality of stages in a longitudinal direction; wherein each compressor unit including a compression portion that compresses a fluid, a motor that drives the compression portion, and a cooling fan that is driven by the motor; each stage of the package-type fluid machine further comprises: a machine chamber in which the compressor unit is disposed; and an inverter chamber which is adjacent to the machine chamber and in which the inverter is disposed; and a partition wall that partitions off the machine chamber from the inverter chamber; and a main intake port (1401,1402,1403) that takes in the fluid to be compressed by the compression portion; characterised in that each stage further comprises: an opening in the partition wall; and an inverter intake port (2201,2202,2203) that is disposed in the inverter chamber to take in an outside air, wherein the cooling fan is disposed on a side of the machine chamber, the opening being located on the side, and the cooling fan is driven to cause the outside air to flow from the inverter intake port (2201,2202,2203) to the opening to cool the inverter, wherein the inverter intake port (2201,2202,2203) and the main intake port (1401,1402,1403) are disposed on opposite sides when seen from a front. a plurality of compressor units (31,3101,3102,3103) and a plurality of inverters (1201,1202,1203), wherein the compressor units (31,3101,3102,3103) and the inverters (1201,1202,1203) are disposed in a plurality of stages in a longitudinal direction; wherein each compressor unit including a compression portion that compresses a fluid, a motor that drives the compression portion, and a cooling fan that is driven by the motor; each stage of the package-type fluid machine further comprises: a machine chamber in which the compressor unit is disposed; and an inverter chamber which is adjacent to the machine chamber and in which the inverter is disposed; and a partition wall that partitions off the machine chamber from the inverter chamber; and a main intake port (1401,1402,1403) that takes in the fluid to be compressed by the compression portion; characterised in that each stage further comprises: an opening in the partition wall; and an inverter intake port (2201,2202,2203) that is disposed in the inverter chamber to take in an outside air, wherein the cooling fan is disposed on a side of the machine chamber, the opening being located on the side, and the cooling fan is driven to cause the outside air to flow from the inverter intake port (2201,2202,2203) to the opening to cool the inverter, wherein the inverter intake port (2201,2202,2203) and the main intake port (1401,1402,1403) are disposed on opposite sides when seen from a front. a machine chamber in which the compressor unit is disposed; and an inverter chamber which is adjacent to the machine chamber and in which the inverter is disposed; and a partition wall that partitions off the machine chamber from the inverter chamber; and a main intake port (1401,1402,1403) that takes in the fluid to be compressed by the compression portion; characterised in that each stage further comprises: an opening in the partition wall; and an inverter intake port (2201,2202,2203) that is disposed in the inverter chamber to take in an outside air, wherein the cooling fan is disposed on a side of the machine chamber, the opening being located on the side, and the cooling fan is driven to cause the outside air to flow from the inverter intake port (2201,2202,2203) to the opening to cool the inverter, wherein the inverter intake port (2201,2202,2203) and the main intake port (1401,1402,1403) are disposed on opposite sides when seen from a front. an opening in the partition wall; and an inverter intake port (2201,2202,2203) that is disposed in the inverter chamber to take in an outside air, wherein the cooling fan is disposed on a side of the machine chamber, the opening being located on the side, and the cooling fan is driven to cause the outside air to flow from the inverter intake port (2201,2202,2203) to the opening to cool the inverter, wherein the inverter intake port (2201,2202,2203) and the main intake port (1401,1402,1403) are disposed on opposite sides when seen from a front.