Straw non-pressure hot-water boiler

The utility model relates to a straw non-pressure hot-water boiler, comprising a boiler body; the straw non-pressure hot-water boiler is characterized in that: the boiler body is communicated with a front smoke box which is communicated with a rear smoke box by a horizontal smoke pipe, and the front smoke box, the smoke pipe and the rear smoke box are arranged in the hot water cavity; the straw non-pressure hot-water boiler is designed rationally, can effectively eliminate the disadvantages that the heat efficiency is low and the smoke channel is easy to block in the existing straw boiler, and realize good heating efficiency and is beneficial to cleaning of smoke channels.