Provided is a compressor having an enhanced capability of supplying oil to a thrust bearing and a radial bearing which are interposed between a center through-hole in a cylinder block and a driving shaft. To this end, the compressor 1 has an air bleed passage 31 which is configured to allow crank chamber 5 and intake chamber 7 to communicate with each other, including: a first space S1 in the center through-hole 14; a communicating part 41 for allowing the first space S1 and a second space S2 to communicate with each other; the second space S2 in the center through-hole 14; a penetrating passage 43 formed to pass through the driving shaft 10, thereby allowing the second space S2 and a third space S3 to communicate with each other; the third space S3; and a communicating passage 45 for allowing the third space S3 and an intake chamber 7 to communicate with each other.