Purification tower structure for improving purification smoke temperature by utilizing boiler secondary wind and heat energy

The invention relates to a purification tower structure for improving purification smoke temperature by utilizing boiler secondary wind and heat energy, comprising a desulphurization main tower body and a chimney connected above the desulphurization main tower body; wherein one side opening at the lower part of the desulphurization main tower body is provided with a smoke breathing port connected with the original smoke input pipe, the original smoke input pipe is connected with an original smoke distributing branch pipe, and the upper output terminal of the original smoke distributing branch pipe is led to the interior of the chimney at the upper part of the desulphurization main tower body. The invention improves the smoke temperature after purification, improves upward flow velocity of smoke and is beneficial to discharging of smoke after further treatment.