Circulating dewatering and filtering equipment for lubricating oil

The utility model discloses lubricating oil circulating dewatering and filtering equipment which comprises a filter, a heating barrel, a circulating vacuum tank and a clear water storage tank, the filter is connected with the position of the heating barrel, the heating barrel is connected with the position of the circulating vacuum tank, and the circulating vacuum tank is connected with the position of the clear water storage tank. A first conveying pump and a first conveying pipe are connected between the filter and the heating barrel, a second conveying pipe and a second conveying pump are connected between the heating barrel and the circulating vacuum tank, and a vacuum pump, a condenser and a vacuum pipe are connected between the circulating vacuum tank and the clear water storage tank. And the top of the circulating vacuum tank is connected with a position positioning spraying pipe of the second conveying pipe. The circulating dewatering and filtering equipment for the lubricating oil is provided with th