NOVELTY - A water-gas-linked totally-enclosed internal-rotating constant temperature anaerobic fermentation device comprises a tank body (9) and a cone top (8). The device further comprises a first circulating pump (1), a second circulating pump (2) and a third circulating pump (3) disposed outside the tank body. A first inter ring-shaped tube (13), a second inter ring-shaped tube (14) and a third inter ring-shaped tube (15) are disposed on the inner wall of the tank body from top to bottom. A jet flow assembly (11) is disposed at the bottom center in the tank body.    USE - For municipal domestic waste (claimed).    ADVANTAGE - The device provides excellent resource utilization of municipal domestic garbage and harmless treatment; is able to ferment to make organic fertilizer and effective biogas system for recycling the power generation; is convenient to industrial production; is very beneficial resources; and is very good urban household garbage, wide popularization and application of innocent treatment.    DETAILED DESCRIPTION - A water-gas-linked totally-enclosed internal-rotating constant temperature anaerobic fermentation device comprises a tank body (9) and a cone top (8). The device further comprises a first circulating pump (1), a second circulating pump (2) and a third circulating pump (3) disposed outside the tank body. A first inter ring-shaped tube (13), a second inter ring-shaped tube (14) and a third inter ring-shaped tube (15) are disposed on the inner wall of the tank body from top to bottom. A jet flow assembly (11) is disposed at the bottom center in the tank body. The output end of the first circulating pump is connected with the jet flow assembly. The output end of the second circulating pump (2) is connected with the first inter ring-shaped tube and the second inter ring-shaped tube. The output end of the third circulating pump is connected with the third inter ring-shaped tube. A balancing tube (7) and a leadout upper tube (6) are led out from the upper part of the sidewall of the tank body (9), respectively. The balancing tube and the lead-out upper tube are simultaneously connected with a lead-out tube. The lead-out tube is connected with the input ends of the first circulating pump (1), the second circulating pump (2) and the third circulating pump. An outer warming belt (19), an overflow tube (10), a warming water outlet main tube (20) and a warming water inlet main tube (21) are further disposed on the outer wall of the tank body.    DESCRIPTION OF DRAWING(S) - The figure shows a rotary structure of constant temperature anaerobic fermentation device diagram of municipal solid waste-gas full sealed.    First circulating pump (1)    Second circulating pump (2)    Third circulating pump (3)    Leadout upper tube (6)    Balancing tube (7)    Cone tope (8)    Tank body (9)    Overflow tube (10)    Jet flow assembly (11)    First inter ring-shaped tube (13)    Second inter ring-shaped tube (14)    Third inter ring-shaped tube (15)    Outer warming belt (19)    Warming water outlet main tube (20)    Warming water inlet main tube (21)