Deacidification kettle for phosphorous acid production

The utility model relates to the technical field of deacidification equipment, in particular to a deacidification kettle for phosphorous acid production, which avoids preheating materials and reaction liquid by directly utilizing steam, avoids influencing the concentration of the reaction liquid, and simultaneously blows air to the inner part and the bottom end of a main body cavity of the deacidification kettle. Materials precipitated at the bottom end of the cavity of the deacidification kettle main body are fully mixed with reaction liquid and fully react, so that the deacidification effect of the device is improved; comprising a deacidification kettle main body, a water injection pipe, a discharge pipe, a temperature controller, a heating wire, a top cover, a fixing assembly, a protection box, a motor, a rotating shaft, two groups of first gears, two groups of second gears, a hollow stirring shaft, a connecting pipe, a plurality of groups of hollow stirring pipes, an air blowing box, two groups of air blo