PURPOSE: A low NOx(Nitrogen Oxide) burner is provided to prevent thermal NOx and prompt NOx by recirculating the flames. CONSTITUTION: A low NOx burner comprises an air feeding part shaped like a long triangular rod and a fuel nozzle(700). The air feeding part is radially formed in a rectifier based on a flame stabilizing part(400) and has air supply holes. The fuel nozzle is positioned on the outer circumference of a head. The fuel nozzle jets fuel to a first air feeding portion(120) and a second air feeding portion(220). [Reference numerals] (AA) Fuel; (BB) Air
