Waste incineration device and method with wide calorific value application range

The invention discloses a waste incineration device with a wide calorific value application range. The waste incineration device comprises an incineration hearth and a rotary wing type arch mechanism, wherein the rotary wing type arch mechanism comprises a rotary wing type arch, a transmission shaft, a bearing, a sealing part, a shaft coupler and a motor which are arranged in the incineration hearth; one end of the transmission shaft is fixed with the rotary wing type arch; the other end of the transmission shaft passes through a furnace wall and is in driving connection with the motor through the shaft coupler; the bearing is arranged between the transmission shaft and the furnace wall; the sealing part is arranged in a seam between the transmission shaft and the furnace wall; and the rotary wing type arch rotates by a proper angle under driving of the motor. The invention further discloses a waste incineration device with a wide calorific value application range. According to the waste incineration device a