Outdoor buried optical cable cross-connecting box

The utility model discloses an outdoor buried optical cable cross-connecting box which comprises an outer box body and an optical cable box, the optical cable box is arranged in an inner cavity of the outer box body, a protective cover is installed outside a small cylinder, an air pump is installed at the bottom of the small cylinder, an air guide pipe is connected to the outer side of the air pump, and an inflatable airbag is connected to the bottom end of the air pump. The bottom ends of the small cylinders are connected with telescopic shafts, the ends of the telescopic shafts are connected with buffer plates, the inner walls of the two sides of the outer box body are further provided with sliding grooves allowing the buffer plates to move up and down, and the outer surface of the middle of the optical cable box is provided with a plurality of clamping blocks corresponding to the buffer plates. According to the utility model, the inflatable air bag can be inflated, the inflatable air bag is made of rubber,