Hot water circulating device of boiler economizer

The utility model discloses a hot water circulating device of a boiler economizer, which relates to the technical field of boiler economizers and comprises an economizer fixing frame, a filtering mechanism is arranged outside the economizer fixing frame and comprises a heat preservation box, and the inner wall of the heat preservation box is connected with a sealing frame in a sliding mode. A filter screen is fixedly connected to the inner wall of the sealing frame, a limiting seat is fixedly connected to the outer surface of the sealing frame, and a guide seat is fixedly connected to the outer surface of the heat preservation box. Through the arrangement of the economizer fixing frame, the filtering mechanism and the heat exchange mechanism, impurities in circulating water can be filtered and collected, the situation that an existing boiler economizer easily generates impurities during heating due to the poor quality of the circulating water is avoided, and therefore the situation that the impurities in the