Visual anti-pollution device

The utility model relates to the technical field of feeding bottle corrosion prevention, in particular to a visible anti-pollution device which comprises a protection bottle, a protection cover is rotationally connected to the front surface of the protection bottle, a first fixing block is fixedly connected to the right surface of the protection cover, a first clamping groove is formed in the upper surface of the first fixing block, and a circular ring block is fixedly connected to the bottom face of the protection bottle. A limiting structure and a rotating structure are arranged above the protection bottle, the limiting structure comprises a round block, two first clamping blocks and two U-shaped blocks, and the rotating structure comprises a cross block, a first circular ring and a round cover. The protective cover can be rotated, the feeding bottle is movably clamped on the circular ring block fixedly connected in the protective bottle, at the moment, the feeding bottle can be taken and placed in the prot