A hermetic two-stage compressor (1, 80) comprising: a housing which includes an oil storage inside the housing; a rotary shaft which is disposed in the housing; a motor which is disposed in the housing so as to rotate the rotary shaft and includes a stator which is provided on a radially outer side and a rotor which is provided on a radially inner side; a low stage-side compression section which is disposed on one side in an axial direction of the rotary shaft with respect to the motor in the housing and is connected to the rotary shaft so as to compress a gas; a bearing device which is disposed on the other side in the axial direction with respect to the motor in the housing and includes a bearing which supports the rotary shaft and a bearing casing which supports the bearing to the housing; and a high stage-side compression section which is disposed furhter on the other side in the axial direction with respect to the bearing device and further compresses the gas discharged from the low stage-side compression section, characterised in that the bearing casing includes a plurality of suction channels which are provided to suck the gas into the high stage-side compression section and each of the plurality of the suction channels include a suction opening (FCa) which is open to the one side in the axial direction, and a restricting surface which is disposed between the suction opening (FCa) and the motor and is provided toward the radially inner side from an inner surface of the housing so as to restrict a flow of the gas to the suction opening (FCa) on the radially outer side, wherein the plurality of suction channels extend to be parallel to the axis over the entire region of the bearing casing in the direction of the axis with intervals to each other in the circumferential direction, and wherein the restricting surface includes a plurality of notches which are cut out from an end portion on the radially inner side toward the radially inner side at a position corresponding to the suction opening (FCa) and only a position on the radially inner side of the suction opening (FCa) is open toward the motor. a housing which includes an oil storage inside the housing; a rotary shaft which is disposed in the housing; a motor which is disposed in the housing so as to rotate the rotary shaft and includes a stator which is provided on a radially outer side and a rotor which is provided on a radially inner side; a low stage-side compression section which is disposed on one side in an axial direction of the rotary shaft with respect to the motor in the housing and is connected to the rotary shaft so as to compress a gas; a bearing device which is disposed on the other side in the axial direction with respect to the motor in the housing and includes a bearing which supports the rotary shaft and a bearing casing which supports the bearing to the housing; and a high stage-side compression section which is disposed furhter on the other side in the axial direction with respect to the bearing device and further compresses the gas discharged from the low stage-side compression section, characterised in that the bearing casing includes a plurality of suction channels which are provided to suck the gas into the high stage-side compression section and each of the plurality of the suction channels include a suction opening (FCa) which is open to the one side in the axial direction, and a restricting surface which is disposed between the suction opening (FCa) and the motor and is provided toward the radially inner side from an inner surface of the housing so as to restrict a flow of the gas to the suction opening (FCa) on the radially outer side, wherein characterised in that the bearing casing includes a plurality of suction channels which are provided to suck the gas into the high stage-side compression section and each of the plurality of the suction channels include a suction opening (FCa) which is open to the one side in the axial direction, and a restricting surface which is disposed between the suction opening (FCa) and the motor and is provided toward the radially inner side from an inner surface of the housing so as to restrict a flow of the gas to the suction opening (FCa) on the radially outer side, wherein the plurality of suction channels extend to be parallel to the axis over the entire region of the bearing casing in the direction of the axis with intervals to each other in the circumferential direction, and wherein the restricting surface includes a plurality of notches which are cut out from an end portion on the radially inner side toward the radially inner side at a position corresponding to the suction opening (FCa) and only a position on the radially inner side of the suction opening (FCa) is open toward the motor.