Problems commonly occur when the coal type and/or the load are changed in utility boilers. To solve these problems, a new pulverized coal burner, namely, a burner with continuously variable concentrations of coal dust by using a set of blades, is developed in this study. Gas-solid two-phase flow downstream of the burner was measured by three-dimensional particle dynamics anemometer (3D PDA). The results show that the particle concentration biased degree of the burner can be continuously adjusted between 1 and 3 by changing the angle between the blades and the primary air flow, over a range of 0-20 degrees. The turbulence characteristics in this range promote ignition and combustion of the pulverized coal. The results of combustion tests in a single burner furnace adopting the new burner verify that the temperature in both the near burner region and the furnace can be raised, which leads to better ignition and combustion characteristics of the pulverized coal than with an ordinary burner.