A refrigeration cycle apparatus including a main refrigerant circuit, through which a refrigerant circulates through a compressor , a heat-source-side heat exchanger , a first flow rate control device , and a use-side heat exchanger , the refrigeration cycle apparatus comprising: a first gas-liquid separator ; and a foreign-substance recovery container that recovers a foreign substance contained in the refrigerant, wherein a foreign-substance recovery refrigerant circuit that connects the first gas-liquid separator with the foreign-substance recovery container through a first passage opening and closing device is arranged between a suction side of the compressor and the use-side heat exchanger , in parallel with the main refrigerant circuit, an accumulator is connected between the suction side of the compressor of the main refrigerant circuit and the use-side heat exchanger , the first gas-liquid separator is connected such that an entrance of the first gas-liquid separator is communicated with an exit of the use-side heat exchanger , an exit of a gas phase side of the first gas-liquid separator is communicated with an entrance of the accumulator , and an exit of a liquid phase side of the first gas-liquid separator is communicated with the first passage opening and closing device , and during a foreign-substance recovery operation that uses the foreign-substance recovery refrigerant circuit, the first gas-liquid separator is adapted to cause the refrigerant to flow toward the foreign-substance recovery container via an exit of the liquid phase side and the refrigerant to flow toward the accumulator via an exit of the gas phase side, wherein a low-pressure-side pipe of a high-low pressure heat exchanger , a second gas-liquid separator , and a second passage opening and closing device are connected in that order between the first passage opening and closing device and the foreign-substance recovery container . a first gas-liquid separator ; and a foreign-substance recovery container that recovers a foreign substance contained in the refrigerant, wherein a foreign-substance recovery refrigerant circuit that connects the first gas-liquid separator with the foreign-substance recovery container through a first passage opening and closing device is arranged between a suction side of the compressor and the use-side heat exchanger , in parallel with the main refrigerant circuit, an accumulator is connected between the suction side of the compressor of the main refrigerant circuit and the use-side heat exchanger , the first gas-liquid separator is connected such that an entrance of the first gas-liquid separator is communicated with an exit of the use-side heat exchanger , an exit of a gas phase side of the first gas-liquid separator is communicated with an entrance of the accumulator , and an exit of a liquid phase side of the first gas-liquid separator is communicated with the first passage opening and closing device , and during a foreign-substance recovery operation that uses the foreign-substance recovery refrigerant circuit, the first gas-liquid separator is adapted to cause the refrigerant to flow toward the foreign-substance recovery container via an exit of the liquid phase side and the refrigerant to flow toward the accumulator via an exit of the gas phase side, wherein a low-pressure-side pipe of a high-low pressure heat exchanger , a second gas-liquid separator , and a second passage opening and closing device are connected in that order between the first passage opening and closing device and the foreign-substance recovery container . <EOS>