A rotary compressor comprising: a cylinder comprising a cylinder chamber; and a roller which is housed in the cylinder chamber and eccentrically rotates by rotation of a rotational axis; a first vane and a second vane which come into contact with the roller, reciprocate, partition the cylinder chamber into a compression side and an absorption side and overlap each other in an axial direction of the rotational axis; and a coil spring which biases the first and second vanes (51a, 51b) toward the roller, characterized in that the rotary compressor further comprises: first protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end portion of the first vane along the axial direction, second protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end portion of the second vane along the axial direction, and the first protrusion portions and the second protrusion portions protrude to the coil spring side, and the first and second vanes (51a, 51b) are attached to the coil spring by overlapping the first protrusion portion of the first vane in an end portion on the second vane side in the axial direction with the second protrusion portion of the second vane in an end portion on the first vane side in the axial direction and fitting the overlapped protrusion portions into the coil spring. a cylinder comprising a cylinder chamber; and a roller which is housed in the cylinder chamber and eccentrically rotates by rotation of a rotational axis; a first vane and a second vane which come into contact with the roller, reciprocate, partition the cylinder chamber into a compression side and an absorption side and overlap each other in an axial direction of the rotational axis; and a coil spring which biases the first and second vanes (51a, 51b) toward the roller, characterized in that the rotary compressor further comprises: first protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end portion of the first vane along the axial direction, second protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end portion of the second vane along the axial direction, and the first protrusion portions and the second protrusion portions protrude to the coil spring side, and first protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end portion of the first vane along the axial direction, second protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end portion of the second vane along the axial direction, and the first protrusion portions and the second protrusion portions protrude to the coil spring side, and the first and second vanes (51a, 51b) are attached to the coil spring by overlapping the first protrusion portion of the first vane in an end portion on the second vane side in the axial direction with the second protrusion portion of the second vane in an end portion on the first vane side in the axial direction and fitting the overlapped protrusion portions into the coil spring.