Household atmospheric combustion type gas cooker and furnace end thereof

The invention discloses a household atmospheric combustion mode gas stove and a burner thereof, the gas burner is provided with a combustion chamber and a heat exchange chamber, the combustion chamber is constructed to enable gas to be completely combusted in the combustion chamber and generate high-temperature flue gas, and the heat exchange chamber is constructed to enable the high-temperature flue gas to exchange heat with the center of the bottom of a heated pot; the combustion cavity is provided with a first inlet, a first outlet and a plurality of fire holes, the first inlet is used for allowing secondary air to enter the combustion cavity, the highest fire hole is the highest fire hole, the first outlet is higher than the highest fire hole, and the heat exchange cavity is provided with a second inlet located in the bottom and a second outlet located in the top and communicated with the outside atmosphere. The opening area of the second outlet is larger than that of the second inlet, and the heat exchan