Internal denitration type trolley type gas heating furnace

The utility model discloses an internal denitration type trolley type gas heating furnace which comprises a trolley driving mechanism, a trolley, a furnace door, a furnace door lifting mechanism, a furnace body, a three-way reversing valve, a combustion-supporting air inlet pipeline, an inner smoke exhaust pipeline, a smoke exhaust induced draft fan, an air inlet air blower, an outer smoke exhaust pipeline, a plurality of heat storage type burners and a control system. A plurality of heat accumulating type burners are transversely and uniformly distributed at the lower parts of the two sides of the furnace body; a carbon monoxide inlet pipe communicated with the inner cavity of the furnace body is arranged at the top of the furnace body; the distance between a fire spraying opening of the heat accumulating type burner and a gas outlet of the carbon monoxide gas inlet pipe is larger than 1.5 m. Further improvements are that a carbon monoxide generator is arranged outside the furnace body and is connected with