Gas supply equipment for coal gangue separation

The utility model provides gas supply equipment for coal gangue separation, which comprises a protection mechanism, the protection mechanism comprises a protection shell, pulleys are arranged on the periphery of the bottom of the protection shell, one side of the protection shell is movably connected with a cover plate through a rotating shaft, and a connecting plate is arranged on one side, far away from the protection shell, of the cover plate. Limiting rods are slidably connected to the two sides of the interior of the connecting plate, a clamping plate is arranged above the connecting plate, the bottom of the clamping plate is fixed to the limiting rods, springs are wound around the outer sides of the limiting rods, and the two ends of the springs are fixed to the connecting plate and the clamping plates correspondingly; and a sliding groove is formed in the bottom end of the interior of the protective shell. According to the utility model, the problem that the outer side of gas supply equipment is damage