The invention relates to a solar energy environmental-protection dryer, which comprises a drying tower, wherein the drying tower sequentially comprises a refreshing layer, a shunting layer, a drying layer and a circulation layer from top to bottom, the top of the drying tower is provided with a solar energy heat collection device, and the solar energy heat collection device can pre-heat hot wind. According to the present invention, the solar energy heat collection device can be used to pre-heat hot wind so as to provide advantages of rapid heating and stable temperature, such that the drying efficiency is good, the effect is good, the energy source can be saved, and the energy consumption can be reduced.