Coal body permeability testing arrangement

The utility model discloses a coal body permeability testing arrangement, including support, holder, confining pressure pump, axle load pump, gas cylinder and gas booster pump, the holder is established in the support, and the holder includes the barrel, and the upper end of barrel and lower extreme wear to be equipped with the rock core stopper respectively, and the rock core stopper is equippedwith the air vent along the axial respectively, and the lateral wall of barrel is equipped with the confined pressure interface with the inner chamber intercommunication of barrel, and the confined pressure interface passes through the pipeline and is connected with confining pressure pump, be equipped with the axle load chamber on the support of holder top, the lower extreme in axle load chamberis equipped with the telescopic link, and the lower extreme and the upper end that the rock core on the barrel is filled in of telescopic link are connected, and the axle load chamber is passed through the axle load pipeline a