Well and rock salt solution mining-well recharging filling circulation mining method

The invention relates to a well and rock salt solution mining-well recharging filling circulation mining method. Particularly, a solution mining method is adopted for high-recovery-ratio mining of well and rock salt; meanwhile, waste residues generated in alkali preparation, salt preparation or coal burning process are filled in a salt mining solution cavity by a well recharging filling process method; and the solution mining of the well and rock salt and the well recharging filling circulation of the waste residues are implemented simultaneously. According to the method, various types of well and rock salt resources can be sufficiently mined, the method is particularly suitable for mining of ultra-thick well and rock salt resources, the recovery ratio of the well and rock salt resources can be improved obviously lengthwise and crosswise, and the service life of a salt well is prolonged; the waste residues generated in the alkali preparation, salt preparation or coal burning process are filled in the cavity,