Buried optical cable connector box

The utility model discloses a buried optical cable joint box, and specifically relates to the technical field of optical cable joint boxes, the buried optical cable joint box comprises a protection barrel shell buried underground, the outer end of the protection barrel shell is fixedly provided with a plurality of reinforcing ribs, the front side and the rear side in the protection barrel shell are respectively plugged with a junction box body, and an optical cable is installed in the junction box body; and the bottom of the junction box body is provided with a springing assembly for springing the junction box body upwards. According to the utility model, the two handles are rotated at the same time, and the handles are utilized to drive the vertical rod to rotate, so that the pull rope can be wound at the outer end of the vertical rod, and the insertion block is pulled out from the interior of the springing plate through the winding of the pull rope, so that the compressed second spring can automatically pus