Chemically bonded ceramic environment-friendly water permeable brick and preparation method thereof

The invention relates to a chemically bonded ceramic environment-friendly water permeable brick and a preparation method thereof. The preparation method of the water permeable brick comprises the following steps: S1, mixing pelelith, a first solid filler and a first alkaline solid compound, and carrying out ball milling and screening to obtain a screen residue mixture; s2, filling a mold with vent holes with the screen residue mixture, and sprinkling water for wetting; the filling height of the screen residue mixture in the mold is 10-20 mm; s3, mixing a phosphate aqueous solution, a second alkaline solid chemical and a second solid filler to prepare a chemically bonded ceramic material; s4, a chemical bonding ceramic material is sprayed into the mold to react with the screen residue mixture; s5, the steps S2-S4 are repeated till the mold is fully filled, and then the mold is closed; s6, after the materials in the mold are solidified, demolding, maintaining and polishing are conducted, and the water permeable