Gasification furnace coal drop pipe with temperature control function and temperature control method thereof

The invention discloses a gasification furnace coal drop pipe with a temperature control function, which comprises a gasification furnace assembly, and the gasification furnace assembly comprises an outer furnace body, an inner furnace body, a coal drop port, an electromagnetic coal drop valve and a transition bin coal discharge pipe; and the coal falling temperature control mechanism comprises a coal falling pipe body, a temperature sensor, a jacket boiler and a water supply pump. Coal is directly guided out to the bottom of the inner furnace body through the coal falling pipe body, so that raw gas in the gasification furnace is prevented from directly flowing into the transition bin from the coal falling opening, protection on the transition bin is increased, then the temperature sensor detects temperature data in the coal discharging pipe of the transition bin, and when the data detected by the temperature sensor reaches a threshold value, the transition bin is started. Water is injected into the coal drop