Flame-retardant partition device for laying cable in tunnel

The utility model discloses a flame-retardant partition device for laying cables in a tunnel, which relates to the technical field of cable tunnels and comprises a bottom beam, a cross beam and a partition beam are sequentially arranged above the bottom beam, a door frame is connected between the bottom beam and the cross beam, and a stand column is arranged between the bottom beam and the cross beam and on the outer side of the door frame. A supporting column is connected between the cross beam and the partition beam, a fireproof door is arranged in the door frame, a hinge is rotationally connected between the door frame and the fireproof door, the movable end of the fireproof door is slidably connected with a bolt, a bolt hole is formed in the side, corresponding to the bolt, of the door frame, and a bearing beam is arranged between the door frame and the stand column. The upper ends of the bearing beam, the cross beam and the partition beam are all provided with cables, the exterior of each cable is provid