Boiler waste heat cyclic utilization mechanism and using mode thereof

The invention discloses a boiler waste heat cyclic utilization mechanism and a using mode thereof, and relates to the technical field of boilers. The boiler waste heat cyclic utilization mechanism comprises a supporting table, a first-stage heat recovery mechanism, second-stage heat recovery mechanisms, a discharging valve and a thermometer; the first-stage heat recovery mechanism and the second-stage heat recovery mechanisms are fixed to the supporting table, the first-stage heat recovery mechanism is fixed to the center of the supporting table, and the six second-stage heat recovery mechanisms evenly distributed along the circumference are fixed to the periphery of the first-stage heat recovery mechanism. By arranging the first-stage heat recovery mechanism and the six second-stage heat recovery mechanisms, the heat recovery effect of the mechanisms is greatly improved through the two-stage heat recovery mode, by arranging a first air uniformizing filter assembly and a second air uniformizing filter assembl