A cloth dryer comprising: a heat pump including: a compressor for compressing a refrigerant; a heat radiator for exchanging heat between ambient air and the refrigerant which has been compressed by the compressor and turned into a high temperature and high pressure state so that the refrigerant can radiate heat; a throttling section for decompressing the refrigerant which has radiated the heat in the heat radiator and turned into a high pressure state; a heat absorber for exchanging heat between the ambient air and the refrigerant which has been decompressed in the throttling section and turned into a low temperature and low pressure state so that the refrigerant can deprive the ambient air of heat; and a pipe line for connecting the compressor, the heat radiator, the throttling section, and the heat absorber sequentially for the refrigerant to travel through these elements one by one, a tub for accommodating clothes; a blower for supplying the air heated in the heat radiator into the tub; a heat exchange air-flow path for circulating the air stayed in the tub through the heat radiator via the heat absorber; characterized by a fin striding over the heat radiator and the heat absorber for integrating the radiator and the absorber into one body which can be thus disposed in the heat exchange air-flow path, wherein the heat absorber and the heat radiator are formed of a refrigerant pipe (21a, 23a) respectively, and the pipe forms meanders and extends along a given direction through the fin, and a first heat-transfer reducing section is formed between the heat absorber and the heat radiator such that the heat-transfer reducing section extends along the same direction as the refrigerant pipe extends and reduces heat-conduction through the fin between the heat absorber and the heat radiator, and a second heat-transfer reducing section (32b, 32d) is formed at least on a boundary between a refrigerant two-phase region and a refrigerant overheated region, both of which exist on the heat radiator, and reduces heat-conduction through the fin between the refrigerant two-phase region and the refrigerant overheated region, the second heat transfer reducing section (32b, 32d) extending along a direction crossing the direction of the extending direction of the refrigerant pipe (21a, 23a). a heat pump including: a compressor for compressing a refrigerant; a heat radiator for exchanging heat between ambient air and the refrigerant which has been compressed by the compressor and turned into a high temperature and high pressure state so that the refrigerant can radiate heat; a throttling section for decompressing the refrigerant which has radiated the heat in the heat radiator and turned into a high pressure state; a heat absorber for exchanging heat between the ambient air and the refrigerant which has been decompressed in the throttling section and turned into a low temperature and low pressure state so that the refrigerant can deprive the ambient air of heat; and a pipe line for connecting the compressor, the heat radiator, the throttling section, and the heat absorber sequentially for the refrigerant to travel through these elements one by one, a compressor for compressing a refrigerant; a heat radiator for exchanging heat between ambient air and the refrigerant which has been compressed by the compressor and turned into a high temperature and high pressure state so that the refrigerant can radiate heat; a throttling section for decompressing the refrigerant which has radiated the heat in the heat radiator and turned into a high pressure state; a heat absorber for exchanging heat between the ambient air and the refrigerant which has been decompressed in the throttling section and turned into a low temperature and low pressure state so that the refrigerant can deprive the ambient air of heat; and a pipe line for connecting the compressor, the heat radiator, the throttling section, and the heat absorber sequentially for the refrigerant to travel through these elements one by one, a tub for accommodating clothes; a blower for supplying the air heated in the heat radiator into the tub; a heat exchange air-flow path for circulating the air stayed in the tub through the heat radiator via the heat absorber; characterized by a fin striding over the heat radiator and the heat absorber for integrating the radiator and the absorber into one body which can be thus disposed in the heat exchange air-flow path, wherein the heat absorber and the heat radiator are formed of a refrigerant pipe (21a, 23a) respectively, and the pipe forms meanders and extends along a given direction through the fin, and a first heat-transfer reducing section is formed between the heat absorber and the heat radiator such that the heat-transfer reducing section extends along the same direction as the refrigerant pipe extends and reduces heat-conduction through the fin between the heat absorber and the heat radiator, and a second heat-transfer reducing section (32b, 32d) is formed at least on a boundary between a refrigerant two-phase region and a refrigerant overheated region, both of which exist on the heat radiator, and reduces heat-conduction through the fin between the refrigerant two-phase region and the refrigerant overheated region, the second heat transfer reducing section (32b, 32d) extending along a direction crossing the direction of the extending direction of the refrigerant pipe (21a, 23a).