Apparatus for the domestic composting of organic material, which can be installed inside the kitchen of a house, including: - external fairing equipped with upper openings for the introduction of the organic material and of a structuring substance; - internal framework comprising: a trituration tank comprising means for grinding the organic material; a mixing tank for collecting the shredded organic material, comprising first means for moving the organic material; an emptying system of the organic material comprising a surface for the drainage of the leachate of the organic material, connected to a circuit equipped with means for conveying the leachate to a sewer pipe of the house; a fermentation tank connected to the mixing tank, comprising second means for moving the organic material; a stabilization-maturation chamber connected to said fermentation tank; wherein said trituration, mixing and fermentation tanks (3, 4, 14) comprise respective means for delivering air or water vapor, heating/cooling means configured to maintain the organic material at optimal conditions of oxygenation, temperature and humidity for the acceleration of biological degradation processes and sensors to detect temperature, humidity and PH of the organic material; - a hydraulic unit for the operation of said first and second means for moving; - a composting air circuit comprising: connection means to a suction hood or to an oven present in the kitchen, in which said connection means face said trituration, mixing and fermentation tanks (3, 4, 14), and an exhaust duct outside the house for the removal of odors; and - an integrative artificial heating/cooling system of the organic material. - external fairing equipped with upper openings for the introduction of the organic material and of a structuring substance; - internal framework comprising: a trituration tank comprising means for grinding the organic material; a mixing tank for collecting the shredded organic material, comprising first means for moving the organic material; an emptying system of the organic material comprising a surface for the drainage of the leachate of the organic material, connected to a circuit equipped with means for conveying the leachate to a sewer pipe of the house; a fermentation tank connected to the mixing tank, comprising second means for moving the organic material; a stabilization-maturation chamber connected to said fermentation tank; wherein said trituration, mixing and fermentation tanks (3, 4, 14) comprise respective means for delivering air or water vapor, heating/cooling means configured to maintain the organic material at optimal conditions of oxygenation, temperature and humidity for the acceleration of biological degradation processes and sensors to detect temperature, humidity and PH of the organic material; - a hydraulic unit for the operation of said first and second means for moving; - a composting air circuit comprising: connection means to a suction hood or to an oven present in the kitchen, in which said connection means face said trituration, mixing and fermentation tanks (3, 4, 14), and an exhaust duct outside the house for the removal of odors; and - an integrative artificial heating/cooling system of the organic material.