The utility model discloses a high -efficient environmental protection casting device, including the cope, the bottom boxd, the cope mount, bottom boxd supporting platform, the cope mount includes the stand that four symmetries set up, hydraulic pressure lift slider is all installed at the stand middle part, all be connected with the xarm on the hydraulic pressure lift slider, it is articulated with hydraulic pressure lift slider that the hinge is passed through to xarm one end, it is articulated with the cope that the xarm other end passes through the hinge, the hydraulic pressure compactor is installed at the stand top, bottom boxd supporting platform bottom four corners is all articulated through hinge and lift bracing piece, the bottom boxd is placed on bottom boxd supporting platform, install the baffle between the stand, operate door has wherein been offered on baffle, the roof is installed at the stand top, the baffle forms airtight space with the roof, install the exhaust fan on the roof. Its integrated level is high, convenient to use, and the cost of manufacture is low, and the sand box drawing of patterns is easy, and molding quality is good, efficient, and cooling efficiency is high, casts efficiently.