The invention discloses a clean type
coal environment-friendly boiler, which relates to the technical field of boilers. The
coal storage chamber is set on the upper part of the
combustion chamber, the
combustion chamber is connected to the dust-reducing chamber through pipes, the dust-reducing chamber is connected to the first lower
smoke box through the
flue gas channel, and the first lower
smoke box is connected to the second upper
smoke chamber through the first return smoke
pipe. The second upper smoke box is connected with the second lower smoke box through the second return smoke
pipe, the second lower smoke box is connected with the first upper smoke box through the third return smoke
pipe, and the first upper smoke box is connected with the fourth return smoke The pipe is connected with the third lower smoke box, the third lower smoke box is provided with a smoke outlet, and the auxiliary smoke port provided on the second upper smoke box is connected with the baffle in the
flue gas converter through the pipe. The invention ensures continuous
combustion after the boiler is
shut down, completely solves the problem of smoke when the boiler is
shut down, is energy-saving and environment-friendly, has strong practicability, is easy to popularize and use, and can also use
bituminous coal and
biomass fuels in addition to burning briquettes.