At the moment it's not possible to run docker daemon in WSL. However, you can leverage the daemon installed in the host system. And use the WSL as a client.
The prerequisite is that daemon on the host machine exposes port 2375.
Now let's use the WSL as a client. A couple of ways to do that:
docker -H localhost:2375 images
With this environment variable it is no more necessary to use -H option explicitly
In order not to miss the variable after bash restarts, just append variable assignment to the .bash_profile:
echo "export DOCKER_HOST=localhost:2375" >> ~/.bash_profile
Find more details here.