The utility model discloses a coke oven discharge aqueous ammonia sprinkler, its characterized in that: this sprinkler constitutes silk (2) and metal collapsible tube (3) including spraying handhole door (1), connecting, spraying handhole door (1) and being the taper shape, the surface is sealed effect for the frosting takes, and the top of spraying handhole door (1) is the circular arc top to it has through -hole (4) to open, and the through -hole is equipped with the guiding gutter in (4), does benefit to the aqueous ammonia and is vaporific blowout after through, the upper portion of spraying handhole door (1) is equipped with triangle lug (5), conveniently sprays the dismantlement and the installation of handhole door (1), be equipped with to be connected with through -hole (4) cooperation and will spray handhole door (1) to silk (2) and link to each other with metal collapsible tube (3), connect inseparable zero clearance to it is sealed through the composite pad circle, the end that links to each other with metal collapsible tube (3) is ensured to be connected through the sealing washer does not closely have the leakage. The utility model has the advantages of effectual, simple structure, simple to operate spray, the beneficial effect of its implementation is conspicuous.