A rotary compressor comprising: a hermetically-sealed compressor housing that includes a refrigerant outlet in the upper part thereof and a refrigerant inlet (104, 105) in the lower part thereof, and retains lubricating oil in the lower part thereof; a compressing unit that is placed in the lower part of the compressor housing and compresses a refrigerant sucked through the refrigerant inlet to discharge the compressed refrigerant through the refrigerant outlet; a motor that is placed in the upper part of the compressor housing and includes a rotating shaft connected to the compressing unit to drive the compressing unit via the rotating shaft, the rotating shaft having a vertical oil hole and a lateral oil hole for supplying the lubricating oil; and an oiling mechanism that supplies the lubricating oil to the compressing unit through the vertical oil hole and the lateral oil hole, wherein the oiling mechanism includes: a vertical fitting hole that is formed on a countershaft portion in the lower part of the rotating shaft; an oil pipe that has an inlet port at the lower end and an opening at the upper end, the upper part thereof being press-fitted into the vertical fitting hole; characterised in that the oiling mechanism includes: a pump vane that includes a vane portion formed of an elongate plate and a base portion made wider than the vane portion, the vane portion being twisting processed and inserted into the vertical oil hole to provide a space, the base portion being pressed and fixed into the lower part of the oil pipe that has an inner diameter (φD 1) smaller than the width thereof (H 1), whereby the countershaft portion is not deformed due to the deformation of the oil pipe. a hermetically-sealed compressor housing that includes a refrigerant outlet in the upper part thereof and a refrigerant inlet (104, 105) in the lower part thereof, and retains lubricating oil in the lower part thereof; a compressing unit that is placed in the lower part of the compressor housing and compresses a refrigerant sucked through the refrigerant inlet to discharge the compressed refrigerant through the refrigerant outlet; a motor that is placed in the upper part of the compressor housing and includes a rotating shaft connected to the compressing unit to drive the compressing unit via the rotating shaft, the rotating shaft having a vertical oil hole and a lateral oil hole for supplying the lubricating oil; and an oiling mechanism that supplies the lubricating oil to the compressing unit through the vertical oil hole and the lateral oil hole, wherein the oiling mechanism includes: a vertical fitting hole that is formed on a countershaft portion in the lower part of the rotating shaft; an oil pipe that has an inlet port at the lower end and an opening at the upper end, the upper part thereof being press-fitted into the vertical fitting hole; characterised in that the oiling mechanism includes: a pump vane that includes a vane portion formed of an elongate plate and a base portion made wider than the vane portion, the vane portion being twisting processed and inserted into the vertical oil hole to provide a space, the base portion being pressed and fixed into the lower part of the oil pipe that has an inner diameter (φD 1) smaller than the width thereof (H 1), whereby the countershaft portion is not deformed due to the deformation of the oil pipe. a vertical fitting hole that is formed on a countershaft portion in the lower part of the rotating shaft; an oil pipe that has an inlet port at the lower end and an opening at the upper end, the upper part thereof being press-fitted into the vertical fitting hole; characterised in that the oiling mechanism includes: a pump vane that includes a vane portion formed of an elongate plate and a base portion made wider than the vane portion, the vane portion being twisting processed and inserted into the vertical oil hole to provide a space, the base portion being pressed and fixed into the lower part of the oil pipe that has an inner diameter (φD 1) smaller than the width thereof (H 1), whereby the countershaft portion is not deformed due to the deformation of the oil pipe. a pump vane that includes a vane portion formed of an elongate plate and a base portion made wider than the vane portion, the vane portion being twisting processed and inserted into the vertical oil hole to provide a space, the base portion being pressed and fixed into the lower part of the oil pipe that has an inner diameter (φD 1) smaller than the width thereof (H 1), whereby the countershaft portion is not deformed due to the deformation of the oil pipe.