Bridge column anti-collision protection device

The invention provides a bridge column anti-collision protection device which comprises a bridge and pier columns. The outer sides of the pier columns are sleeved with bearings, and the bearings are tightly attached to the pier columns. The outer rings of the bearings are riveted to the inner sides of protective layers, outward extending antennas are additionally arranged on the protective layers,the antennas can surround the protective layers by a circle or are arranged in a semi-circular shape along the portions, facing a navigation channel, of the protective layers, and the protective layers and the antennas rotate along with the outer rings of the bearings when the pier columns collide with a ship. According to the device, the rotary structures of the bearings are utilized, the extending antennas are additionally arranged on the protective layers arranged on the outer side of the device, the acting force of transverse rotation during ship collision is increased, and therefore, anunloading function is achi