Advanced support with buffering energy-absorbing device

The utility model relates to a forepoling with a buffer energy-absorbing device and a using method thereof, two end faces of a cross beam are provided with penetrating grooves which are oppositely arranged and penetrate through the cross beam, connecting rods which extend along the vertical direction are hinged in the penetrating grooves, and a buffer underframe is hinged with an adjusting oil cylinder which is located below the cross beam and drives one connecting rod to rotate. The extending ends of the adjusting oil cylinders are hinged to the bottom ends of the connecting rods, the adjusting oil cylinders communicate with a liquid supply system, the bottom end of the other connecting rod is hinged to a connecting assembly located below the cross beam, and the end, away from the connecting rods, of the connecting assembly is hinged to the buffering bottom frame. The top ends of the two connecting rods are hinged to edge beams located over the cross beam, the ends, away from the connecting rods, of the two