The invention discloses a comprehensive recycling method of coal-series solid waste, and belongs to the crossing field of metallurgy and chemical industry. The method comprises the following steps: firstly, crushing and finely grinding coal-series solid wastes to obtain mineral powder, and carrying out magnetic separation and flotation on the mineral powder to obtain a carbon-removed material; and carrying out nitric acid pressurization two-stage reverse leaching reaction on the decarbonized material, and then sequentially recovering elements such as silicon, gallium, aluminum, magnesium and the like. According to the process method, the dissolution rate of extracted aluminum oxide is high, and aluminum and iron in the pickle liquor can be effectively separated; wherein aluminum nitrate and magnesium nitrate solutions obtained in the technological process are evaporated and concentrated to obtain crystals for subsequent decomposition and regeneration to obtain acid and alkali, so that acid-alkali double-medium regeneration cycle is realized; and meanwhile, elements such as aluminum, iron, calcium, magnesium and gallium in the coal-series solid waste are comprehensively utilized. The method has the advantages of low acid consumption, low impurity content in the leachate, low impurity removal cost, comprehensive recycling of each element, low equipment requirement, simple process and the like.