Wall painting device for building decoration

The invention belongs to the technical field of painting tools for building decoration, and particularly relates to a wall painting device for building decoration. The wall painting device comprises asupport, wherein a sliding block is connected to the support in a vertical sliding manner; a rolling brush is arranged on the sliding block; a storage mechanism is connected to the sliding block; a discharging port opposite to the rolling brush is arranged in the storage mechanism; a supporting block is connected to the sliding block in a horizontal sliding manner; a mounting base is rotationallyconnected to the supporting block; the rolling brush is rotationally connected to the mounting base; and an elastic mechanism for pushing the supporting block to slide is connected to the sliding block. According to the scheme, a problem that the efficiency is low due to the fact that continuous operation cannot be performed during painting in the prior art. 本发明属于用于建筑装饰的上漆工具技术领域，具体为用于建筑装饰的墙面刷漆装置，包括支架，支架上沿竖向滑动连接有滑块，滑块上设有滚刷