The utility model discloses a liquid chlorine throwing device which is characterized in that the liquid chlorine throwing device comprises a housing with an overflow chamber, the upper part of the housing is provided with a valve rod which penetrates the overflow chamber, and the lower part of the housing is provided with a liquid chlorine throwing opening. The front end of the valve rod and the liquid chlorine throwing opening are corresponding, sealing packing is arranged between the valve rod and the housing, and the sealing packing are compacted by a gland. The top of the housing is provided with a spring letter by which the valve rod is controlled, a spring letter chassis and a pressure spring are arranged in the spring letter, and the spring letter is combined with the housing at together via a connecting piece. The fabricating cost of equipment is reduced for a liquid chlorine directly throwing device is adopted by the utility model. The running and the maintenance are very simple, the electric energy consumption is less, and the economic performance and the security are evenly very high.