Process method for manufacturing manganese products through high-concentration SO2 smoke leaching manganese ore pulp

The invention discloses a process method for manufacturing manganese products through high-concentration SO2 smoke leaching manganese ore pulp. The process method mainly comprises the steps that high-concentration SO2 smoke enters from a first-stage tower segment of a multi-stage spray tower, manganese ore pulp liquid enters from a last-stage tower segment of the multi-stage spray tower, in each-stage tower segment, the smoke enters from the lower portion of the tower segment to be subjected to a contact reaction with the manganese ore pulp liquid sprayed down from the top, and a proper amount of air is blown into the tower bottom to reinforce desulfuration and leaching of manganese. The manganese ore pulp liquid subjected to full leaching is finally discharged out of the first-stage tower segment, a manganese sulfate solution product is obtained, the fully-desulfurated smoke is exhausted out of the last-stage tower segment, the content of SO2 reaches the standard, and the smoke is directly exhausted into air. The smoke with unqualified SO2 content enters a deep desulfurization tower, and SO2 in gas continues to be removed till the content of SO2 reaches the standard. The operating temperature of the contact reaction ranges from 70 DEG C to 85 DEG C, and pH ranges from 2 to 3. The method has the advantages of being high in resource utilization rate, high in desulfuration efficiency, high in manganese leaching rate, high in adaptability to manganese oxide ore, low in cost and the like.