Inlet flow mixing pipe of desulfurizing tower

The invention relates to an inlet flow mixing pipe of a desulfurizing tower. The inlet flow mixing pipe comprises a bottom sealing plate and a connecting plate located above the bottom sealing plate,wherein the bottom sealing plate and the connecting plate are connected into a whole through a peripheral plate, the bottom sealing plate, the connecting plate and the peripheral plate define an internal space allowing waste gas to be exhausted into, a powder generator air inlet hole, a host machine air inlet hole and a boiler air inlet hole are formed in the bottom sealing plate, an air outlet hole is formed in the connecting plate, air inlet pipes are arranged at the power generator air inlet hole, the host machine air inlet hole and the boiler air inlet hole, an air outlet pipe is arrangedat the air outlet hole, and the center of the host machine air inlet hole, the center of the air inlet pipe arranged at the host machine air inlet hole, the center of the air outlet hole in the connecting plate and the center