Novel residual-heat atmospheric pressure hot water boiler

The utility model discloses a novel residual-heat atmospheric pressure hot water boiler. A convection heating system is of a spirally corrugated smoke pipe, a boiler housing is longitudinally arranged, the spirally corrugated smoke pipe is arranged inside the boiler housing, a turbolator is arranged at an entrance of the smoke pipe, an inlet smoke box and an outlet smoke box are respectively arranged at the front part and the rear part of the boiler housing. The novel residual-heat atmospheric pressure hot water boiler can fully absorb residual heat in a kiln, has a novel and compact structure, is energy-saving and environment-friendly, reasonable for design of a water circulation system, and safe and reliable for running.