The utility model relates to a combustor device with low nitrogen oxide emission. A tubular gas chamber is arranged in the air pipe, and a multi-cavity premixer structure is formed on the outer cylindrical surface of the gas chamber through a gas partition plate and gas spray holes; a central air pipe is arranged in the air pipe, a gas inlet is formed in the outer circular surface of the central air pipe, one end of the central air pipe is connected with a kindling fan, and a kindling combustion head is arranged at the other end; a secondary mixing device is arranged at the front end of the air pipe, and through the negative pressure effect formed by high-speed and high-temperature airflow at the front end of the air pipe, part of smoke in the hearth is sucked in through a furnace cavity air inlet annular channel of the secondary mixing device; the air pipe is connected with a main fan, the main fan is connected with an air inlet channel, a smoke introducing cavity and an air introducing cavity are formed in the air inlet channel, a two-stage air door is arranged on the lower portion of the air introducing cavity, and the proportion of the amount of air entering the main fan to the amount of smoke is adjusted through the two-stage air door. According to the utility model, based on the design structure of two premixes, two admixtures, two air distributions, two adjustments and one stability, ultra-low nitrogen combustion is realized.