Desulfurizing tower

The invention relates to a desulfurizing tower which comprises a tower body and an observation window arranged on the tower body, the observation window comprises a window frame and glass installed on the window frame, glass wipers are arranged on the inner side and the outer side of the glass respectively, and the two glass wipers are oppositely arranged and can synchronously move in the first direction. Therefore, when rime fog and water drops appear on the inner glass and the outer glass of the observation window, the glass wiper on the outer glass is controlled and operated to move along the first direction, so that the glass wiper on the inner glass is driven to synchronously move along the first direction, the rime fog and the water drops on the surfaces of the two sides of the glass are scraped off, the surfaces of the glass are kept clean, and a clear observation visual field is provided. 本公开涉及一种脱硫塔，包括塔体和设置在所述塔体上的观察窗，所述观察窗包括窗框和安装在所述窗框上的玻璃，所述玻璃的内外两侧分别设置有玻璃擦，两个所述玻璃擦相对设置并且能够沿第一方向同步移动。这样，当观察窗的内外侧玻璃上出现白雾和水