Compressor

A compressor, comprising:

• a casing;
• an electric motor provided inside of the casing and that operates a rotational shaft;
• a compression device including a compression chamber, wherein the compression device is located under the electric motor in the casing and compresses refrigerant gas in the compression chamber by being operated by the electric motor via the rotational shaft and discharges the compressed refrigerant gas from the compression chamber to a refrigerant discharge port;
• a main frame located between the electric motor and the compression device, wherein the main frame supports the compression device and the rotational shaft;
• and
• a flow path guide installed on the main frame and that separates a refrigerant flow path from an oil flow path, wherein the flow path guide includes a first partition wall and a second partition wall which are spaced apart from each other, wherein the first partition wall extends along an outer edge of the flow path guide such that the first partition wall faces an inner surface of the casing, wherein the second partition wall has a radius smaller than a radius of the first partition wall and is arranged closer to the rotational shaft than the first partition wall, so that a guide space is defined between the first partition wall and the second partition wall, and wherein a section of the first partition wall is omitted or the first partition wall has an opening formed therethrough toward the inner surface of the casing, to form an oil discharge port in the flow path guide.