Desulfurizing spray tower

A desulfurizing spray tower belongs to the technical field of boiler flue gas desulfurization and comprises a spray layer and a flue inlet, wherein a Venturi rod layer with multilayer structure is arranged between the spray layer and the flue inlet, Venturi tubes between two adjacent layers are vertically positioned, and each Venturi rod layer is composed of a plurality of Venturi tubes which are equidistantly arranged on a holder. Based on the prior spray tower, the Venturi rod layers are added in the desulfurizing spray tower of the utility model, the rod layers can lead flue gas to be evenly distributed on the tower cross-sectional area and to form strong turbulent flow, therefore the gas-liquid mass transfer effect is strengthened, the absorbent surface is unceasingly renewed and the utilization ratio of desulfurizer is enhanced. Furthermore, the Venturi rod layer is an independent and complete component, thus the gas-liquid mass transfer is guaranteed to be steadily finished by an absorbing tower even th