Multilayer modularization house with eave drainage structures

The utility model provides a multilayer modularization house with eave drainage structures, including the multilayer at a plurality of outer wall units of vertical direction interconnect, fixed connection is in the roof of top outer wall unit top and locate the drainage structures of the border below on roof, and is adjacent the corner fittings of outer wall unit passes through coupling assemblingand connects, coupling assembling includes the joint wing that bottom plate and protrusion bottom plate upside and/or downside set up, the joint wing includes a plurality of flanges, the outer fringeof flange with the inner edge phase -match card of the spliced eye of corner fittings is gone into in the corner fittings and butting positioning. Be convenient for converging of rainwater and discharging of drainage structures's setting, can deal with the condition of a large amount of rainfalls for the rainwater is direct to fall into ground by the roof, prevents that a large amount of precipitation from to the impact o