This invention relates to the field of methylal removal technology and discloses a methylal removal tower for a propylene oxideplant, comprising a main body with a feed inlet in the middle. When the spring swings back and forth, the rotating ball rotates inside the connecting rod via a second connecting rod, thereby applying a partial thrust to the liquid and the gas entering the liquid. This creates slight turbulence within the liquid, mixing the liquid and gas accumulated between the two baffles. This reduces the likelihood of stagnant liquid forming inside the baffles during the removal of methylal as part of the liquid passing through them, which would otherwise hinder methylal removal. This ensures the speed of methylal removal and improves the overall quality of methylal removal from propylene oxide.