The invention relates to a suspension-type normal-pressure energy-saving and environment-friendly hot blast heater based on pulverized coal combustion. The suspension-type normal-pressure energy-saving and environment-friendly hot blast heater is characterized in that an upper main-body air bellow on the upper portion of the hot blast heater is connected with one end of a main-body heat exchange pipe arranged on each side; the other ends of the main-body heat exchange pipes are connected with a right main-body air bellow and a left main-body air bellow respectively; the right main-body air bellow is provided with an air inlet a, an air inlet b and an air outlet a; a middle right air bellow and a middle left air bellow forms a middle heat exchange system of the hot blast heater; an air outlet b is arranged at one end of the middle right air bellow; the middle right air bellow is connected with the middle left air bellow through heat exchange pipes. A left fire-grate air bellow is connected with a right fire-grate air bellow through fire-grate heat exchange pipes. A pulverized coal burner is arranged on the front portions of the main-body heat exchange pipes, and is provided with a primary air inlet and a secondary air inlet. The suspension-type normal-pressure energy-saving and environment-friendly hot blast heater has the advantages that pulverized coal is used as fuel under normal pressure, so that combustion speed and burn-off rate are high, heat efficiency is improved greatly, and the problems, such as high energy consumption, high smoke emission load, environment pollution, low efficiency and energy waste, of conventional hot blast heaters are solved.