Significant volumes of mine water are generated throughout the coal extraction process. If not managed properly, this can lead to the wastage of valuable water resources and environment contamination. Conventional treatment and reuse methods are often simplistic and fail to address the complex water requirements of mining areas. This study focuses on the mine water from a specific mine within in Handan-Xingtai coalfield of the Jizhong Energy Group. We employ a "high-density clarification-ultrafiltration" treatment process to purify the mine water, tailoring its reuse for groundwater replenishment, domestic supply and agricultural irrigation water based on the quality of the treated effluent. Our findings indicate that Polyaluminum Chloride (PAC) is the most effective coagulant, with an optimal dosage is 80 mg/L. For flocculation, anionic polyacrylamide (PAM) is identified as the best choice, with an ideal dosage of 2mg/L. The ultrafiltration stage further ensures the removal of any residual suspended solids from the water. In terms of mine water reuse strategies, during the agricultural irrigation season, the entire influx of mine water is directed towards agricultural irrigation, with groundwater and domestic water sources supplemented by municipal water supplies. The overall cost of water is 2.59 yuan/ton; In non-agricultural irrigation seasons, all incoming mine water is utilized for underground and domestic water, with the surplus being discharged externally. The cost is reduced to 0.49 yuan/ton. This approach offers substantial social and economic benefits, making it a viable and sustainable solution for mine water management.