Concentrated oil supplementing device of compressor

The utility model relates to a compressor centralized oil recharging device which comprises a storage box, an oil pumping unit is arranged on the storage box, a threaded rod is further rotationally connected into the storage box, a nut block is connected to the threaded rod in a threaded mode, at least one heating rod is fixedly connected to the outer portion of the nut block, a guide rod is further fixedly connected into the storage box, and the guide rod is connected with the heating rod in a threaded mode. According to the lubricating device for the compressor, lubricating oil can be stored through the arranged storage box, then after the lubricating oil is pumped out through the oil pump, the lubricating oil can be added to a unit of the compressor for lubrication, and through the arrangement of the heating rod and the stirring and mixing unit, the heating rod and the stirring and mixing unit can be used for heating the unit of the compressor. And when the nut block moves and drives the heating rod to hea