There's no native way to email documents to Google Drive. You'll need a third-party tool.
I would use If This Then That (IFTTT). By combining the right channels you can get the attachments from an email message into your Google Drive.
There are a couple of ways to go about it. Since you're using Google Drive, you presumably have a Gmail account. There are already several recipes that will take attachments (under the right circumstances) and save them to Drive for you, such as this one: Save new email attachments to Google Drive. Essentially, it looks for one or more attachments on any email received at your Gmail address and saves it into the Google Drive folder you designate. By using a slightly different trigger, you can have it only save attachments with messages from your work address or with certain keywords in the subject. (Use the "New mail in inbox from search" trigger with
has:attachment and whatever other search term you need.)
Another way to do it, without getting email involved, is to use the Email channel and the right trigger.
You could certainly just send email to
email@example.com and have it fire, but then you're precluding using the same trigger for other recipes. I suggest using the "Send IFTTT an email tagged" trigger.
Then, the action is simply to save to Google Drive.
Of course, you'll need to send the email from the email address associated with your IFTTT account in order for it to work.
I've created a recipe which does just that.