Full-automatic low-nitrogen condensation type gas-fired hot water boiler

The utility model provides a full-automatic low-nitrogen condensation type gas-fired hot water boiler, belongs to the technical field of gas-fired hot water boilers, and is used for solving the problem that heat conduction efficiency is affected due to the fact that a heat conduction pipe in a heat exchanger is easily corroded by generated impurities. Comprising a heat exchange box, a filter box is arranged on the outer wall of the bottom of the heat exchange box, an access hole is formed in the outer wall of one side of the filter box, a sealing plate is arranged on the inner wall of the access hole, the same partition plate is arranged on the inner walls of the two sides of the filter box, and inclined mounting frames are arranged on the two sides of the outer wall of the top of the partition plate; impurity discharging openings are formed in the two sides of the outer wall of the top of the partition plate; according to the full-automatic low-nitrogen condensation type gas-fired hot water boiler, the filte