Pulse combustion drying device

The invention discloses a pulse combustion drying device, and relates to the technical field of food separation and drying. The pulse combustion drying device comprises a pulse combustor, a first separator and a second separator, the lower part of the pulse separator is provided with an induced draught fan, the tail of the pulse combustor is provided with a feeding pipe, the pulse combustor is connected to the first separator, the first separator is connected to the second separator, the lower portions of the first separator and the second separator are provided with discharging openings, and the second separator is connected to the corresponding discharging opening through a filter. According to the pulse combustion drying device, feeding and drying are conducted in a tail pipe of the pulse combustor, the combustor adopts a U-shaped valve-free structure, and back flow of pulse combustion is guided into a drying chamber by a backflow guide pipe to increase the heat energy utilization rate; the whole pulse com