Automatic cage curtain for mine

The utility model provides an automatic cage curtain for a mine, which belongs to the technical field of mine equipment and can be in linkage with a safety door. The upper edge of the safety door is provided with a safety door upper sling winding on a movable pulley through a positioning angle pulley, the tail end of the upper sling is fixed, the lower portion of the movable pulley is connected with a hydraulic extending oil cylinder, and the lower edge of the safety door is provided with a safety door pull down sling. A trolley is fixed arranged on the safety door pull down sling, and the tail end of the safety door pull down sling winds around a counter weight fixed pulley to be connected with a counter weight object. The rear side of the safety door is provided with a cage curtain connected with a trolley hanging piece through a cage curtain upper sling, the trolley hanging piece is arranged in a hanging piece slide rail and connected with the hanging piece slide rail in a slide mode, and the hanging piece