NOVELTY - A horizontal rotary low pressure internal fired high temperature gas retort comprises retort body (1) having front end cover and rear end cover, transmission mechanism, sealing mechanism, feeding mechanism and discharging mechanism. The retort body has fire-resistant layer (4), isolation layer (5) and safety sheath (6). The periphery direction of inner wall of hearth is uniformly embedded with ceramic handles (7). The adjacent handles are arranged linearly on same bus or arranged on different buses at random.    USE - Horizontal rotary low pressure internal fired high temperature gas retort for solid biomass.    ADVANTAGE - The gas retort can continuously and directly carbonize and gasify solid biomass under low pressure and high temperature of 800-1000 degrees C; and achieves thermal efficiency of above 85%.    DETAILED DESCRIPTION - The horizontal rotary low pressure internal fired high temperature gas retort comprises retort body (1) having front end cover and rear end cover, transmission mechanism, sealing mechanism, feeding mechanism and discharging mechanism. The retort body has fire-resistant layer (4), isolation layer (5) and safety sheath (6). The periphery direction of inner wall of hearth is uniformly embedded with ceramic handles (7). The adjacent handles are arranged linearly on same bus or arranged on different buses at random. The middle of retort body is provided with gear wheel ring (8) for transmitting power. The 2 sides of gear wheel ring are respectively provided with V-shaped guide rail. The V-shaped idler wheel is supported by idler wheel bracket. The axes of retort body has inclination of 3-5 degrees with horizontal plane. The sealing component is provided between retort body and front end cover and rear end cover. The front end cover is provided with feeding mechanism consisting of hopper, air-locking valve and screw parts feeder. The discharging mechanism includes carbon discharging orifice, sorting tank with cooling water jacket, air-locking valve and screw discharger.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram illustrating a horizontal rotary low pressure internal fired high temperature gas retort.    Retort body (1)    Fire-resistant layer (4)    Isolation layer (5)    Safety sheath (6)    Ceramic handles (7)    Gear wheel ring (8)