Natural gas burner

The utility model discloses a natural gas burner which comprises a fan, an air guide pipe is connected outside the fan, one end of the air guide pipe is connected with a combustion chamber through a fixing disc, a gas pipe is arranged on the top of the combustion chamber, two branch pipes are connected to the bottom of the gas pipe, and a valve set is installed at the joint of the gas pipe and the two branch pipes. One end of the air guide pipe extends into the combustion chamber and is connected with an air guide plate, one ends of the two branch pipes extend into the combustion chamber and are connected with a dispersion cover, an inner concave ball is installed in the center of the interior of the dispersion cover, the air guide pipe is located on one side of the combustion chamber, and the tail ends of the two branch pipes are located on the front portion and the rear portion of the combustion chamber respectively. The gas pipe is connected with the two branch pipes through a three-way joint; according to