Efficient and energy-saving burner for top combustion stove

The utility model relates to an efficient and energy-saving burner for a top combustion stove. The burner comprises a stove body, a precombustion chamber, a combustion air inlet, a gas inlet and a hot air outlet, wherein the precombustion chamber is positioned at the upper part of the inner chamber of the stove body; the hot air outlet is formed at the lower part of the stove body; a vault is arranged at the top of the stove body; the precombustion chamber comprises a gas chamber and a combustion air chamber, and the gas chamber is positioned on the upper side of the combustion air chamber; a spiral burner is horizontally fixed in the gas chamber; and an annular air intake mechanism is arranged in the combustion air chamber. The utility model has the advantages of good structural stability, uniform airflow distribution, compact layout, small occupied area, investment conservation, high thermal efficiency, long service life, easy manufacture or transformation, favorable popularization and implementation, and t