Catalytic flue gas desulfurization tower

The invention discloses a catalytic flue gas desulfurization tower, which performs flue gas desulfurization through desulfurization reactors, and comprises a left desulfurization reactor vertical column, a right desulfurization reactor vertical column, a left desulfurization reactor vertical column and a right desulfurization reactor vertical column, the right side desulfurization reactor vertical column comprises at least two desulfurization reactors; an air inlet pipe network, an exhaust pipe network and a regeneration liquid circulation system; the frame-type supporting structure and the desulfurization reactors on the frame-type supporting structure belong to a reinforced concrete integrated structure, and anti-corrosion materials are laid on the concrete inner walls of the desulfurization reactors. The frame type supporting structure and the desulfurization reactors on the frame type supporting structure are constructed into the reinforced concrete integrated structure, so that the frame type supporting