The utility model discloses a coal industry hydrogasification for equipment scour protection lose structure relates to coal gasification technical field, especially relates to coal the chemical industry control dust -laden medium to the wearing and tearing of equipment, the utility model discloses a casing, tube sheet and heat exchange tube, the tube sheet divide into pipeline casing the heat transfer chamber and admits air the chamber, its characterized in that: it pours the layer of pouring that forms by refractory material to admit air to be provided with on the inside wall in chamber, pour layer direction of motion thickness taper thickening along gas, pour still to be provided with between layer and the tube sheet to strengthen and pour the layer, the reinforcing is pour the layer and is pour the layer and encloses into the reducing cavity, heat exchange tube and reducing cavity intercommunication, the utility model discloses can reach and prevent to contain the mesh of semicoke coarse coal gas to the waste heat boiler entrance point mouth of pipe and heat exchanger entrance point mouth of pipe abrasion to the life of extension equipment.