Shears-fork type pushed and retracted water blocking and drainage device with telescopic boom door

The invention provides a shears-fork type pushed and retracted water blocking and drainage device with a telescopic boom door. The shears-fork type pushed and retracted water blocking and drainage device comprises a first water blocking component and a second water blocking component which are arranged in opposite directions, wherein the first water blocking component and a second water blocking component respectively comprise a plug, a telescopic shell and a shears-fork type telescopic framework, and the shears-fork type telescopic framework drives the plug in the telescopic shell to drive the telescopic shell to extend or shorten; and teeth used for occlusion are arranged on the opposite sides of the plugs of the first water blocking component and the second water blocking component. Thewater blocking and drainage device is placed at an entrance of a garage and also comprises a liquid level sensor used for detecting the level of water. When the liquid level sensor detects that the level of water reaches a s