Grate-rotary kiln double-passage pulverized coal burner

The utility model belongs to the technical field of grate-rotary kiln pellet production line equipment, and particularly relates to a grate-rotary kiln double-passage pulverized coal burner, which comprises a pulverized coal chute and an outer sleeve, an oil jet atomizer assembly is arranged in the outer sleeve, the inner surface of the left end of the outer sleeve is connected with a pulverized coal burner nozzle, and the outer surface of the outer sleeve is provided with a refractory cement protective layer. The oil jet atomizer assembly comprises an inner sleeve, an oil jet atomizer, a flange plate, a support, a ceramic wear-resistant sleeve, an oil delivery tube and an oil supply system, and both the support and the flange plate are connected with the outer sleeve. A stainless steel heat-resistant ring is adopted as the pulverized coal burner nozzle. The pulverized coal burner has the advantages that: the distribution of temperature in a rotary kiln in a pellet production line is improved, consequently, t