The invention relates to a dry acetylene generation system, which comprises sequentially communicating equipments as follows: a crude carbide material bin, a crusher, a conveying device, a sieving device, a fine carbide material bin, a conveying gauge device, a dry acetylene generator and a slag device, wherein a control system is arranged on the conveying gauge device and the dry acetylene generator for controlling feed of the conveying gauge device and rotary speed and water inflow of the dry acetylene generator, a dust cleaning device is positioned on the dry acetylene generator, a gas-water separation device is arranged on the dust cleaning device. The invention can be applied in the acetylene system produced by carbide and water in the industrial production, which solves the problem of low acetylene the yield, terrible working environment, unstably continuous operation, low by-product utilization benefit, water resource waste, environmental pollution. The system is low in fixing assets investment, high in security, high in automation degree, high in acetylene the yield, zero in waste liquid discharge, little in water usage and the like.