The present invention discloses a vortex-burning type mosquito-fuel concentration-controlled diffuser. The vortex-burning type mosquito-repellent combustion concentration-controlled diffuser of the present invention is provided in a cylindrical shape that forms an accommodation space therein, but the lower body is formed with an inlet through which air is introduced from the outside, and an upper surface is opened, and an upper portion of the lower body is opened. It is formed to be connected to the upper side of the upper body is provided with a blowing fan for forcing air through the suction port and discharged to the outside; Arranged on the inner lower side of the lower body to form a combustion chamber in which mosquito coils are burned, the coil-type mosquito coil is fixed to the bottom surface, and the upper surface is a combustion case having an open cylindrical shape, and air is supplied through the intake port to the side of the combustion case. A combustion vortex inlet formed to flow through and a combustion vortex blade which is provided at one end of each of the combustion vortex suction ports to induce air flowing into the inner center to cause vortex, and is provided to surround the combustion case, and includes multiple combustion on the side. The control hole is formed and is composed of a combustion control case that controls the opening amount of the combustion vortex intake by receiving a forward and reverse rotation operation, and is provided on the upper surface of the combustion case to be shielded to provide a guided flow of combustion gas in a lateral direction. Combustion unit; It is fixed to the upper side of the combustion unit and the upper portion of the damper control part is accommodated therein to form a dilution chamber into which combustion gas flows. The user's rotation by accommodating a plurality of dilution vortex inlets through which the air in the intake port flows, and dilution vortex blades and dilution cases that induce a