Fully-automatic horizontal-type hot-air boiler

The invention discloses a fully-automatic horizontal-type hot-air boiler, which is characterized in that: a fireproofing boiler wall at the front side is provided with a cold air inlet and an automatic coal feeding hole, wherein the cold air inlet is arranged at the upper part of the automatic coal feeding hole; an automatic chain fire grate is arranged in the boiler body at the lower part of the automatic coal feeding hole; a fireproofing boiler wall at the rear side is provided with a hot-air header and outlet and a blast nozzle; a slag outlet is arranged at the bottom of the boiler body at the tail end of the automatic chain fire grate; an upper boiler arch is arranged in the boiler body; the boiler body is divided into a combustion region at the lower part and a cold air exchange region at the upper part by the upper boiler arch; the combustion region is communicated with the cold air heat exchange region through a smoke inlet of a heat exchange tank; a rear arch is arranged between the upper boiler arch and the automatic chain fire grate; 3-7 smoke boxes which are communicated are arranged in the cold air heat exchange region; smoke box clapboards which are staggered up and down are arranged among the smoke boxes; a heat transfer pipe and a smoke box channel are arranged in each smoke box; the fireproofing boiler wall at the top of the smoke box at the tail end is provided with a smoke outlet; and the fireproofing boiler wall on the lateral wall of each smoke box is provided with an ash-removing inspection hole. The fully-automatic horizontal-type hot-air boiler disclosed by the invention has the advantages of high heat efficiency and convenience for maintenance.