Combined moving bed flue gas desulfurization device

The utility model discloses a combined moving bed flue gas desulfurization device. Comprising a flue gas desulfurization tower, a moving bed adsorption reaction section, a drying section, a liquid distributor, a magnetic conveying belt, iron balls, a desulfurization agent pulping system, a vibration separation system, a desulfurization agent channel lower section, an upper flue gas partition plate, a desulfurization agent channel upper section, an outer side upper flue gas channel, an outer side lower flue gas channel, a middle flue gas channel, a lower flue gas partition plate and a conical baffle plate, iron balls are used as carriers on a moving bed part, the surfaces of the iron balls carry fully-wetted desulfurizing agents to be in contact reaction with flue gas, the reacted iron balls pass through a drying section on the lower portion of the moving bed, reaction products are dried through the drying section, and the reaction products are discharged in a solid form under the action of a vibration separat