A linear compressor comprising: a shell; a frame which is inserted into an inside of the shell, and includes a frame head and a frame body extending from a rear surface of the frame head in a longitudinal direction of the shell; a cylinder which is inserted into the frame body to form a compression space in a front end portion thereof; a piston which is installed and configured to reciprocate inside the cylinder; a motor assembly to move the piston in an axial direction of the cylinder to compress refrigerant suctioned into the compression space; a discharge cover unit which is coupled to a front surface of the frame and defines a discharge space in which refrigerant discharged from the compression space is accommodated; a discharge valve which is disposed to contact a front surface of the cylinder and configured to selectively open and close the compression space; and a valve spring assembly inserted into the discharge cover unit to provide an elastic force to the discharge valve in a direction in which the discharge valve is in contact with the front surface of the cylinder, wherein the discharge cover unit includes a cover housing forming the discharge space and having a rear surface fixed to a front surface of the frame head, wherein the cover housing has a rear surface portion open and a front surface portion closed, characterized in that the cover housing further comprises: a dividing sleeve extending in the longitudinal direction of the shell from an inner surface of the cover housing to divide the discharge space into a plurality of discharge spaces; and a discharge cover which is inserted into the cover housing and is in contact with an end portion of the dividing sleeve. a shell; a frame which is inserted into an inside of the shell, and includes a frame head and a frame body extending from a rear surface of the frame head in a longitudinal direction of the shell; a cylinder which is inserted into the frame body to form a compression space in a front end portion thereof; a piston which is installed and configured to reciprocate inside the cylinder; a motor assembly to move the piston in an axial direction of the cylinder to compress refrigerant suctioned into the compression space; a discharge cover unit which is coupled to a front surface of the frame and defines a discharge space in which refrigerant discharged from the compression space is accommodated; a discharge valve which is disposed to contact a front surface of the cylinder and configured to selectively open and close the compression space; and a valve spring assembly inserted into the discharge cover unit to provide an elastic force to the discharge valve in a direction in which the discharge valve is in contact with the front surface of the cylinder, wherein the discharge cover unit includes a cover housing forming the discharge space and having a rear surface fixed to a front surface of the frame head, wherein the cover housing has a rear surface portion open and a front surface portion closed, characterized in that the cover housing further comprises: a dividing sleeve extending in the longitudinal direction of the shell from an inner surface of the cover housing to divide the discharge space into a plurality of discharge spaces; and a discharge cover which is inserted into the cover housing and is in contact with an end portion of the dividing sleeve. a dividing sleeve extending in the longitudinal direction of the shell from an inner surface of the cover housing to divide the discharge space into a plurality of discharge spaces; and a discharge cover which is inserted into the cover housing and is in contact with an end portion of the dividing sleeve.