Steady combustion corrosion resistance gas-fired boiler

The utility model discloses a stable-combustion corrosion-resistant fuel boiler. The boiler includes a shell (1), a furnace (2), a smoke pipe (3), a burner (6), an water inlet, a gas outlet, a water level gauge and a pedestal; a cloverleaf-type steady burner (4) is arranged in the position of 1-1.5 meter to the inlet of the boiler furnace (2), and a torsion braid is arranged in the smoke pipe (3). Corrosion-resistant spray painting is adopted on the inner walls of the furnace (2) and the smoke pipe (3), thereby prolonging the service life of the boiler and preventing the boiler from corrosion. The fuel boiler is applicable to the combustion utilization of combustible gases, particularly to the combustible gases with low heat value, thereby solving the problems of rapid ignition and stable combustion, enabling the combustion to be complete, saving the energy and protecting the environment.