Environment-friendly alkaline dry battery

The utility model discloses an environment-friendly alkaline dry battery which comprises a carbon rod vertically arranged in the middle of a battery shell and a metal cover arranged on the surface of the upper end of the carbon rod, an edge extending towards the central axis of the battery shell is arranged at the upper end of the battery shell, a gasket is arranged between the edge and the upper side of the metal cover, and an annular groove is formed in the surface of the upper side of the edge. A fixing ring is embedded in the annular groove, and a plurality of clamping columns which extend to the lower end of the edge in a sliding mode are annularly arranged on the bottom side of the fixing ring. The metal cover is clamped and fixed through the cooperation of the fixing ring, the clamping column and the gasket, and meanwhile, the metal cover is convenient to disassemble, so that the carbon rod is convenient to take out and recycle, and the environmental protection performance of the dry battery is improve