Powder transportation is the main factor affecting the morphology of the laser cladding layer of the coaxial powder feeding nozzle. In order to improve the concentration effect of the powder flow in the flow field outside the nozzle and study the influence of the elastic recovery coefficient on the powder flow, this paper combines the existing four-channel coaxial powder feeding nozzle in the laboratory to establish a three-dimensional simplified model based on the gas-solid two-phase flow theory the velocity field, concentration field, focal length, and spot size under different elastic recovery coefficients are simulated and calculated by Fluent software. Numerical simulation results show that when the carrier gas flow rate and powder feeding rate are constant, with the increase of the elastic recovery coefficient, the powder flow velocity increases slightly, and the air flow velocity changes little, the concentration and focal length of the convergence point decrease, the powder flow converges increase.