The present invention relates to a mobile refrigerant recovery device configured to be movable for refrigerant recovery at a refrigerant recovery site, wherein a cast is provided on one side, a suction connection and a discharge connection are provided, and piping is connected to a refrigerant-using device and a refrigerant charging container. an enclosure, a first transfer pipe provided inside the enclosure, one end of which is connected to the suction connection part, and the other end of which is connected to an accumulator for separating the liquid refrigerant contained in the inhaled gaseous refrigerant, thereby forming a transfer path for the refrigerant; , a second transfer pipe for connecting the accumulator and the small compressor to supply gaseous refrigerant from which the liquid refrigerant is separated to the small compressor, and a third transfer pipe for guiding the gaseous refrigerant discharged from the small compressor to the oil separator, and A fourth transfer pipe, a fifth transfer pipe connecting the oil separator and the condenser, a condenser for condensing the gaseous refrigerant from which the oil is separated by the oil separator, and the refrigerant condensed through the condenser is transferred to a refrigerant-using device. It includes a sixth transfer pipe for guiding, and an oil reservoir for storing separated oil is connected to one side of the oil separator by an oil return pipe, and the oil reservoir is connected to the second transfer pipe by an oil return capillary. The oil stored in the oil reservoir is recovered and supplied to the small compressor by the suction pressure of the small compressor. According to this, as the refrigerant recovery device becomes more compact and lighter, its mobility in the field is improved and it can be operated more easily in various places.
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