The invention relates to a
coal-fired hot-blast stove capable of improving the
combustion rate. The
coal-fired hot-blast stove comprises a stove body, wherein the upper portion of the stove body is connected with a heat exchange bin arranged on one side through a
smoke exhaust pipe, and used for conducting heat exchange on
cold air in a heat exchange
pipe in the heat exchange bin; and the outer wall of the stove body is fixedly connected with a feeding hopper used for crushing
coal briquettes into coal particles or pulverized coal. According to the coal-fired hot-blast stove, a
crusher in thefeeding hopper rotates, rises and falls along a single-circle spiral net, a conical column at the upper half part of the
crusher drives a blade to primarily process coal briquettes to
cut the coal briquettes into coal briquettes of smaller sizes, and then heavy pressing is carried out on a leaking net by a pressing table at the
lower half part of the
crusher to press the coal briquettes into pulverized coal or coal particles meeting the specification, so that
combustion is facilitated. An original feeding hopper of the coal-fired hot-blast stove is changed into a device for
processing the coalbriquettes into the pulverized coal, so that the loss during pulverized coal transportation is avoided, the problem that the efficiency of directly burning the coal briquettes is low is solved, and the
combustion rate of the hot-blast stove is improved.