The utility model relates to a gun distributing device for flue gas selective non-catalytic reduction (SNCR) denitration of a glass melter. The gun distributing device comprises a glass melter (6), wherein the glass melter (6) is connected with a regenerative chamber (2); the regenerative chamber (2) is connected with a melter flue (12). The gun distributing device is characterized in that a group of heat exchange blocks (8) are connected inside the regenerative chamber (2) in a matching manner; a cavity of the regenerative chamber (2) is divided into a group of heat storage channels by the heat exchange blocks (8); a group of reducing agent spray guns (1) are connected inside the heat storage channels; each reducing agent spray gun (1) is connected with a reducing agent storage tank (3) by virtue of a main pipeline (13); a conversion valve (5) is connected to the main pipeline (13). The gun distributing device has the advantages that the device is simple in layout form and strong in practicability, the mixing reaction effect of a nitric oxide in the flue gas and the reducing agent is enhanced, the SNCR denitration efficiency is improved, the gun distributing device is low in project investment cost, and the cost is saved.