The invention discloses a little oil burner of a double-sided ignition combination blunt body. A primary air pipeline is communicated with a secondary coal dust combustion chamber through a section of coal dust concentrator formed by a tapered pipeline with a throat part formed through invagination, a primary coal dust combustion chamber is arranged in the secondary coal dust combustion chamber, and the secondary coal dust combustion chamber extends into a tertiary coal dust combustion chamber. The upper side surface and the lower side surface of the tertiary coal dust combustion chamber connected with the secondary coal dust combustion chamber are provided with a plurality of secondary air inlets in equal intervals, an upper oil combustion chamber and a lower oil combustion chamber are arranged on the primary coal dust combustion chamber after aslant penetrating through the secondary coal dust combustion chamber, a combination blunt body is arranged at the port of the secondary coal dust combustion chamber, and a plurality of through-flow holes are arranged on the upper surface and the lower surface of the second coal dust combustion chamber positioned in the tertiary coal dust combustion chamber. By adopting the top and bottom arrangement of two oil guns, coal dust entering into the primary coal dust combustion chamber are ignited in a double side way, which strengthens turbulent mass and heat exchange of coal dust current and oil flame to rapidly heat the coal dust and form a fire curtain, thereby prolonging the residence time of the coal dust and strengthening the ignition process.