Brick making method

The invention provides a brick making method. The method comprises the following steps of: grinding domestic garbage, screening fine-grained garbage with the grain diameter of less than 5mm, removing impurities from building waste, grinding into building waste powder with the grain diameter of less than 1mm, grinding clay into clay powder with the grain diameter of less than 0.5mm, grinding coal gangue into coal gangue powder with the grain diameter of less than 0.8mm, mixing in a weight ratio of (3-3.5):(3-4):(1-1.5):(1.4-2), adding water, stirring to form a uniform mixture, stacking and ageing for more than 72 hours, stirring for 0.5 to 1 hour, making a green brick, drying in a tunnel kiln, and firing to obtain a finished product. The domestic garbage, the building waste and the coal gangue are fully utilized, and the produced brick has high plasticity and bearing capacity and is energy-saving and environment-friendly.