The invention relates to an energy-saving high-efficiency acid mist purification tower based on internet of things. The energy-saving high-efficiency acid mist purification tower comprises a tower body, a first water pipe, a water pump, a second water pipe, a third water pipe and a spray head, wherein the tower body also comprises a disturbance mechanism and a stirring mechanism, the disturbance mechanism comprises a first connecting pipe, a second connecting pipe, a driving assembly and a disturbance assembly, and the stirring mechanism comprises a first motor, a stirring shaft, a spiral blade, a disturbance rod and a stirring blade. By adopting the energy-saving high-efficiency acid mist purification tower, the disturbance mechanism is enabled to work by utilizing water energy in residual energy, so that the disturbance is increased, the contact time between an absorption solution and waste gas is prolonged, and not only is the purification efficiency improved, but also the energy is saved; and meanwhile, a mixture of the absorption solution and waste gas is sufficiently stirred by virtue of the stirring mechanism, and the absorption solution and the waste gas are uniformly mixed and react sufficiently, so that the purification efficiency can be increased.