A refrigerator comprising: a cabinet having an interior space; a wall partitioning the interior space into a storage space (W1, W2) and an air flow path, the wall includes a discharge port and a suction port; and a temperature adjusting device in communication with the air flow path, wherein the air flow path includes a discharge flow path for guiding air to the discharge port, wherein the discharge flow path has an inlet formed closer to a first side edge of the wall than a second side edge of the wall, and wherein the suction port is positioned so that a vertical centerline of the wall extends through the suction port or a vertical centerline of the suction portion is closer to the vertical centerline of the wall than to the first and second side edges (200A, 200B) of the wall, wherein the refrigerator further comprises a return duct including a return flow path and configured to guide air between the suction port and the temperature adjusting device, the return duct including: an inlet through which air is received from the suction port; an outlet through which air is discharged to the temperature adjusting device, and wherein the vertical centerline of the wall passes through the outlet; and wherein a duct section is provided between the inlet and the outlet, wherein the duct section overlaps a fan of the temperature adjusting device in a horizontal direction in an overlap portion; characterized in that a fan motor mounting portion on which the fan is mounted is positioned between the fan and the overlap portion. a cabinet having an interior space; a wall partitioning the interior space into a storage space (W1, W2) and an air flow path, the wall includes a discharge port and a suction port; and a temperature adjusting device in communication with the air flow path, wherein the air flow path includes a discharge flow path for guiding air to the discharge port, wherein the discharge flow path has an inlet formed closer to a first side edge of the wall than a second side edge of the wall, and wherein the suction port is positioned so that a vertical centerline of the wall extends through the suction port or a vertical centerline of the suction portion is closer to the vertical centerline of the wall than to the first and second side edges (200A, 200B) of the wall, wherein the refrigerator further comprises a return duct including a return flow path and configured to guide air between the suction port and the temperature adjusting device, the return duct including: an inlet through which air is received from the suction port; an outlet through which air is discharged to the temperature adjusting device, and wherein the vertical centerline of the wall passes through the outlet; and wherein a duct section is provided between the inlet and the outlet, wherein the duct section overlaps a fan of the temperature adjusting device in a horizontal direction in an overlap portion; characterized in that a fan motor mounting portion on which the fan is mounted is positioned between the fan and the overlap portion. an inlet through which air is received from the suction port; an outlet through which air is discharged to the temperature adjusting device, and wherein the vertical centerline of the wall passes through the outlet; and wherein a duct section is provided between the inlet and the outlet, wherein the duct section overlaps a fan of the temperature adjusting device in a horizontal direction in an overlap portion; characterized in that a fan motor mounting portion on which the fan is mounted is positioned between the fan and the overlap portion.