A compressor comprising: a vessel configured to store a lubricating oil therein; an outer pipe being connected from an outside to pass through the vessel; an inner pipe being closely inserted into the outer pipe and arranged in the vessel; a suction pipe being closely inserted into the outer pipe and through which a refrigerant is sucked; a rotary shaft being accommodated in the vessel; and a compression mechanism, which is accommodated in the vessel, and configured to compress the refrigerant sucked from the suction pipe through rotation of the rotary shaft; wherein the compression mechanism includes a suction hole formed of a blind hole to extend in an axial direction of the outer pipe, and the outer pipe is closely inserted into an opening of the suction hole; wherein the compressor includes a suction valve, which is arranged in the suction hole, and is configured to allow a flow of the refrigerant from the suction pipe into a compression chamber of the compression mechanism; wherein the suction valve includes a seal on a side facing the opening of the suction hole, and is configured to move together with the seal in the suction hole; and wherein the seal is configured to seal an entire end of the inner pipe on a side facing the suction valve when the compressor stops; wherein the suction valve comprises: a suction valve body which is formed in a bottomed cylindrical shape and provided with a hollow part defined therein; a spring configured to urge the suction valve body in a direction of sealing the entire end of the inner pipe on the side facing the suction valve; characterised in that the suction valve further comprises a projection portion which is integrally formed with the suction valve body and includes a shaft part which is formed on a seal mounting surface for mounting the seal opposite to the hollow part to extend from the seal mounting surface in an axial direction of the suction valve, and a head part which is connected to the shaft part and formed in a plate shape; wherein the seal includes a through hole which is provided at a center portion thereof and into which the shaft part is inserted; and wherein the projection portion is formed in a cross-sectional T-shape in the axial direction of the suction valve. a vessel configured to store a lubricating oil therein; an outer pipe being connected from an outside to pass through the vessel; an inner pipe being closely inserted into the outer pipe and arranged in the vessel; a suction pipe being closely inserted into the outer pipe and through which a refrigerant is sucked; a rotary shaft being accommodated in the vessel; and a compression mechanism, which is accommodated in the vessel, and configured to compress the refrigerant sucked from the suction pipe through rotation of the rotary shaft; wherein the compression mechanism includes a suction hole formed of a blind hole to extend in an axial direction of the outer pipe, and the outer pipe is closely inserted into an opening of the suction hole; wherein the compressor includes a suction valve, which is arranged in the suction hole, and is configured to allow a flow of the refrigerant from the suction pipe into a compression chamber of the compression mechanism; wherein the suction valve includes a seal on a side facing the opening of the suction hole, and is configured to move together with the seal in the suction hole; and wherein the seal is configured to seal an entire end of the inner pipe on a side facing the suction valve when the compressor stops; wherein the suction valve comprises: a suction valve body which is formed in a bottomed cylindrical shape and provided with a hollow part defined therein; a spring configured to urge the suction valve body in a direction of sealing the entire end of the inner pipe on the side facing the suction valve; characterised in that the suction valve further comprises a projection portion which is integrally formed with the suction valve body and includes a shaft part which is formed on a seal mounting surface for mounting the seal opposite to the hollow part to extend from the seal mounting surface in an axial direction of the suction valve, and a head part which is connected to the shaft part and formed in a plate shape; wherein the seal includes a through hole which is provided at a center portion thereof and into which the shaft part is inserted; and wherein the projection portion is formed in a cross-sectional T-shape in the axial direction of the suction valve. a suction valve body which is formed in a bottomed cylindrical shape and provided with a hollow part defined therein; a spring configured to urge the suction valve body in a direction of sealing the entire end of the inner pipe on the side facing the suction valve; characterised in that the suction valve further comprises a projection portion which is integrally formed with the suction valve body and includes a shaft part which is formed on a seal mounting surface for mounting the seal opposite to the hollow part to extend from the seal mounting surface in an axial direction of the suction valve, and a head part which is connected to the shaft part and formed in a plate shape; wherein the seal includes a through hole which is provided at a center portion thereof and into which the shaft part is inserted; and wherein the projection portion is formed in a cross-sectional T-shape in the axial direction of the suction valve.